The must-have Macro Loupe for all watch lovers

Iconic watch art prints. Made in Switzerland, lifetime guarantee

The Longines HydroConquest L3.782.3.56.7 is a watch that does more than just tell time: it makes a statement.

Inspired by the nautical and sporting world, it combines the character of a dive watch with the timeless elegance inherent to Longines. Its robust case, deep black dial, and steel bracelet give it a striking presence on the wrist, equally appealing with a casual outfit or a more formal one.

Designed to accompany you on all your adventures, it boasts a robust construction and excellent legibility. Every detail exudes quality: a rotating bezel, meticulously crafted hour markers and hands, refined finishes, and an instantly recognizable sporty identity.

But what truly makes it so captivating is this balance between sportiness, elegance, and prestige. The HydroConquest possesses that extra something that makes you not just wear a watch: you wear a Longines.

An ideal piece for those seeking a Swiss watch with character, reliable and elegant, capable of lasting for years without losing its appeal.

Strength and character

I present to you my Victorinox Maverick large.
A watch, as stated in the title, strong in character due to its size at first (43mm) ideal for men's wrists 😉.
Strong in character due to its general appearance which combines the two-tone 316l steel (silver and gold) and its bezel and dial with a sunburst bottle glass which gives it a slightly blingbling classy general look.
Finally, strong in character due to its weight and robustness which determines the reputation of Victorinox.
For me a perfect combo which makes this watch, certainly quartz, an everyday watch.

Strong in character

As stated in the title, this watch is present for all daily tests.
It can be worn during the day for work with its elegant side as well as in physical or sporting activity with its robust side.
Its dial and case give it a classy look and its rubber strap gives it the sporty touch that makes this watch a useful timepiece for every situation.

A watch that can withstand anything

The Tissot T-Race Swissmatic highlights the spirit of motorsports while integrating a Swissmatic movement for the first time. Its structure is inspired by the different elements that make up a racing motorcycle: a bezel in the shape of a brake disc and attachments reminiscent of suspensions. 
All the elements of this model, such as its dial with thick Super-LumiNova indexes and its rubber strap on the inside and alligator-print leather on the outside, contribute to its sober and elegant look. 
It therefore does not leave you indifferent with its rather atypical look and its large size, ideal for large wrists.

Does not leave you indifferent

The Tissot Ballade Powermatic 80 cosc incorporates a fluted bezel as well as a guilloché in the center of its dial. This timepiece is equipped with a Powermatic 80 movement, as well as a patented silicon spiral balance. These elements added to the COSC certification make the Tissot Ballade one of the most precise watches in the Tissot collection.
Its look makes this watch a classy piece.
I opted for this rose gold color which gives it an eye-catching side but not too much.
The comfort of its bracelet gives the feeling of no longer wearing it throughout the day, which makes this watch one of my favorites.


Pure class

Longines is a watchmaking house founded in 1832 in Saint-Imier, Switzerland, by Auguste Agassiz. Now part of Swatch Group, the brand serves a broad audience&mdash;from first &ldquo;classic&rdquo; buys to enthusiasts drawn to its heritage&mdash;through clear, elegant, and consistent design.
<h3>Saint-Imier roots, timekeeping and aviation legacy</h3>
From pocket watches to sports timing and pilot instruments, Longines built a reputation for precision and reliability; its iconography&mdash;winged hourglass, clean dials, sober typefaces&mdash;has spanned eras without sacrificing legibility. In the 20th century it supported records, developed aerial navigation tools and popularised tool-watches that later returned as Heritage re-editions.
<h3>Spirit, Conquest, HydroConquest, Legend Diver and Ultra-Chron</h3>
The current line clusters into clear families that cover everyday use, sport-chic, diving and technical heritage; the common thread is crisp reading and balanced proportions from desk to travel:
<ul>
<li>Longines Spirit &mdash; Contemporary pilot (three-hand, GMT, chronograph and Flyback) with grained dials, applied markers, and chronometer options.</li>
<li>Longines Conquest &mdash; Historic sport-chic line (date three-handers, chronographs) built for daily wear with integrated steel bracelets.</li>
<li>Longines HydroConquest &mdash; 300 m diver with bold look (ceramic bezel, large markers), offered in multiple sizes and colours.</li>
<li>Longines Legend Diver &mdash; Re-edition of a 1960s super-compressor (internal ring, twin crowns), an Heritage icon.</li>
<li>Longines Ultra-Chron &mdash; Tribute to 36,000 vph &ldquo;high-beat&rdquo; pieces, reinterpreted in a characterful case with ultra-smooth seconds.</li>
</ul>
<h3>Exclusive mechanics, silicon and Flyback chronography</h3>
Recent collections use exclusive movements derived from proven Swiss bases, adding silicon hairsprings, extended power reserves and careful regulation; on Spirit, the Flyback chronograph pairs a column wheel with instantaneous return for intuitive consecutive timing. Several families (including Spirit and Record) offer chronometer-certified versions, while Heritage revisits historic architectures while preserving clarity.
<h3>Positioning, price bands and distribution</h3>
Longines sits in a &ldquo;premium-accessible&rdquo; slot within Swatch Group, with worldwide distribution (boutiques and authorised retailers) and a well-structured after-sales network; as a guide, most references span roughly CHF 1,000&ndash;4,000 by function/material, with specific pieces (high-beat, flyback, Heritage editions) extending beyond. Volumes are significant for the segment, yet launches are paced through measured series and variants.
<h3>Conclusion</h3>
Longines appeals to those who want a clear, elegant, trustworthy watch&mdash;seasoned with history. Its identity shows in the winged hourglass, crisp dials and balanced cases. For a versatile first classic, look to Longines Conquest; for modern aviation cues, Longines Spirit; for robust diving, Longines HydroConquest; for heritage character, Longines Legend Diver; for high-beat precision, Longines Ultra-Chron. To match promise with real-world wear (clarity, comfort, timekeeping), rely on Dialicious customer reviews.
(Updated August 2025)

I think everyone knows Longine, this mythical Hydro Conquest has been produced for a long time. It is a superb diving watch. I bought it in black in 39mm, there is ceramic, but I wanted to stay in its DNA, so I bought it 2 years ago and it is still a pleasure to wear it from time to time.

She flies over time

I present to you my Longines Hydroconquest model L3.781.4, the model with the ceramic bezel, I will tell you about my love for this model first of all (the Hydroconquest) and for the Longines brand, for Longines it was quite simply my first real "luxury" watch for me, I had bought the Longines Conquest Quartz at the Doux house in Avignon, it was my first customer experience also in a real high-end watch retailer, not that I denigrate the others far from it, but I must admit that the customer experience is not the same, so there you have it Longines already symbolizes that for me, the entry into the world of Swiss watchmaking, after I sold resold, bought back a lot of Longines Conquest and Hydroconquest both Quartz and automatic, they accompanied me in my various missions abroad and underwater because being a diver I use them as real tools ... Then comes my encounter with the model that I present to you today and that I wear every day since, it was the end of May last year (2022), I was leaving to do my last mission abroad (24 years of service and 15 missions) my sixteenth mission and I wanted to treat myself, and have a companion whose reliability of the old model and the brand in general I know, so basically I'm going for the 39mm model, I'm three days away from leaving, everything is going well for me to have the 39mm because the order was placed by Doux with the item in stock, then two days before I go to pick it up because my order is ready and there on the way I have a phone call from Doux who tells me that they made a mistake and that the model they have in stock is the 41mm and there problem is that if I want the 39mm I will have to wait a week minimum to have it, mission impossible because I'm leaving in two days so too bad I take the 41mm, and I don't regret it, it's her who chose me for the occasion, so I'm doing my last mission in Africa with it in Niger, honestly I had a great time with this watch, even if the mission wasn't the best I've done due in particular to the disengagement from Mali and the end of Barkhane, so two months of a real mess and honestly the Longines was a daily pleasure because even on the worst days, admitting it on my wrist brought me "comfort" it's stupid to say but lovers will understand, then working in the field of fireworks and explosives I wasn't allowed to have a phone or any other connected watch, so needless to say it played an important role, even more so at the end of my mandate when my phone broke so no more alarm clock and only my watch as a means of knowing the time... rather practical at that time to have a Lumi that works especially when you have to know the time in the middle of the night in a tent either to leave for work or not to miss your plane home... so there you go for it already for me it marks my last missions with the army (which happened exactly 20 years after my first mission), on my return I was able to use it for diving too and it's perfect, nothing to say, a bezel that works perfectly (not too hard, not too soft either), a super lum, clearly visible indexes, a very practical crown protector especially when diving from the shore, an extension of the bracelet to put over the wetsuit, in short a good diver and designed for diving... it goes well with a Nato bond or black too, I love it, it's really elegant and more refined than the latest version even if I still love the old version too.... In any case, if you are looking for a weak, robust, precise watch (from +2 to +4 seconds max daily drift depending on the extreme climatic conditions of Africa or the cold of diving in winter), at an affordable price (1750€ to date), and a brand with an incredible history and the oldest brand and the oldest logo in the history of watchmaking then go for it and if you want information do not hesitate to contact me, my insta: Time-To-Diving

My Longines adventurer

I fell for this diver from the winged hourglass brand, and it was first of all the colorful aesthetic of the perfectly readable blue dial that I liked. With its trio of colors: blue, white, red in honor of this exclusive FRANCE edition. I find the tricolor Lollipop second hand very original. The watch is super comfortable to wear (currently with a steel bracelet). It comes with a nato that is also tricolor. 
Good power reserve of around sixty hours and precision more than sufficient for my taste. In addition, the case back is numbered (really! and not "one of ...") with my lucky numbers, which I was able to choose in store. 
I love this watch and I never take it off!

Hydroconquest exclusive France edition

This is a watch that has eaten away at my brain!! I discovered the Longines brand when I was in my twenties, I am 42 today, at the time I thought they were luxury glasses I was told, then in 2017 after watching show jumping competitions on the Equidia channel where Longines was a sponsor..., this brand came back to me, and I went to see my AD to see what the models were like... I didn't know anything about it but I liked the look and especially this galloping second hand fascinated me. A few weeks later I went to the checkout, some €1000 in months but I had it on my wrist. More surprisingly, this watch was a small mattress, I did not hesitate to sell it as soon as a need for money arrived, or a vacation.. I must have bought it at least 6 times new and used, that's why I give the adjectives like Indispensable and Addictive, because as it is the first one I really need it, otherwise there is a lack! And perfect; I would say, because it is super well finished, movement at the top a few +/-1s per day and quality/price ratio we do not do better I found in several years of passion. Now, it is no longer in the catalog of the brand, the model stops for the ceramic bezels ... So it's up to me not to sell it anymore ...

Longines Hydroconquest, my first luxury watch!!

In search of a diver's watch combining performance and prestige without breaking my budget, my choice naturally fell on the Longines HydroConquest. This model is a real success, not only for its high-quality movement, but also for the brand's unwavering reputation.

From the first time you hold it, you can feel the weight of the watch, testifying to the robustness and solidity of the materials used. Every detail is taken care of, from the clasp to the impeccable finish of the stainless steel. The watch, with its elegant appearance and impeccable construction, gives off an impression of luxury while remaining accessible.

This purchase also has a special resonance for me. My father had received a Longines for his 25th birthday, but he unfortunately lost it over the years. Acquiring this HydroConquest was a bit like bringing a Longines back into the family, thus perpetuating a tradition and a family attachment to this iconic brand.

A meaningful and quality purchase

ZRC est une maison horlog&egrave;re fond&eacute;e en 1904 &agrave; Gen&egrave;ve (Suisse) par Edmond Zuccolo et Joseph Rochet. N&eacute;e dans l&rsquo;univers des cha&icirc;nes de gousset puis des bracelets m&eacute;talliques extensibles, la marque s&rsquo;adresse aujourd&rsquo;hui aux amateurs de plongeuses-outils iconiques, rendue c&eacute;l&egrave;bre par sa Grands Fonds d&eacute;velopp&eacute;e pour la Marine nationale &agrave; partir des ann&eacute;es 1960.
<h3>Couronne &agrave; 6 h, bo&icirc;tier monobloc et esprit Marine nationale</h3>
Con&ccedil;ue pour r&eacute;pondre aux contraintes op&eacute;rationnelles des plongeurs-d&eacute;mineurs fran&ccedil;ais, la Grands Fonds adopte la couronne &agrave; 6 h, un bo&icirc;tier monobloc et des solutions maison comme l&rsquo;ECS (Easy Clean System) et le CPS (Crown Protection System). Dans la pratique, la couronne &agrave; 6 h et le CPS emp&ecirc;chent de porter la montre si la couronne n&rsquo;est pas parfaitement viss&eacute;e, limitant ainsi les risques d&rsquo;erreur avant immersion ; l&rsquo;ECS facilite le rin&ccedil;age pour &eacute;viter la cristallisation du sel sous la lunette.
<h3>Grands Fonds et d&eacute;clinaisons contemporaines</h3>
La collection actuelle d&eacute;cline l&rsquo;ADN historique (lisibilit&eacute;, ergonomie de terrain, silhouette &laquo; outil &raquo;) en plusieurs tailles et niveaux de performance. Quel que soit le mod&egrave;le, l&rsquo;architecture et la signature &agrave; 6 h rendent la lecture imm&eacute;diate et l&rsquo;identit&eacute; instantan&eacute;ment reconnaissable.
<ul>
<li>ZRC Grands Fonds MN64 &mdash; Hommage aux sp&eacute;cifications Marine nationale, codes historiques de cadran et de lunette.</li>
<li>ZRC Grands Fonds Heritage&nbsp;&mdash; Gabarit plus contenu (38 mm) conservant la signature de couronne &agrave; 6 h pour les poignets fins.</li>
<li>ZRC Securicode &mdash; R&eacute;interpr&eacute;tation d&rsquo;un th&egrave;me de la fin des ann&eacute;es 1950/1960, avec &eacute;l&eacute;ments de style historiques.</li>
</ul>
<h3>Positionnement : outil pro, prix et distribution</h3>
La marque revendique un positionnement &laquo; instrument de plong&eacute;e &raquo; au sein de l&rsquo;horlogerie ind&eacute;pendante suisse, avec volumes de production non communiqu&eacute; et diffusion s&eacute;lective (d&eacute;taillants sp&eacute;cialis&eacute;s et vente directe). &Agrave; titre indicatif, de nombreuses r&eacute;f&eacute;rences acier se situent autour de 2 500&ndash;3 000 &euro;, tandis que des versions techniques en titane d&eacute;passent 4 000 &euro; ; certaines &eacute;ditions sp&eacute;ciales ou m&eacute;taux nobles s&rsquo;&eacute;tablissent nettement au-del&agrave;. Pr&eacute;sence confirm&eacute;e en France avec des &eacute;taillants comme <a href="https://www.bijouterie-clouzeau.fr/fr/marques/zrc-1904">Clouzeau</a> ou <a href="https://www.berenger.fr/fr/horlogerie-berenger/marques/zrc-1904">Berenger</a>, et sur quelques march&eacute;s Asie/Moyen-Orient via un r&eacute;seau resserr&eacute;.
<h3>Conclusion</h3>
ZRC s&rsquo;adresse aux amateurs de montres-outils au style imm&eacute;diatement identifiable, qui privil&eacute;gient la fonctionnalit&eacute;, la lisibilit&eacute; et une signature de design forte. Le choix se fera entre un usage polyvalent quotidien (Grands Fonds 300/38), une filiation historique appuy&eacute;e (MN64, Securicode) ou une approche plus technique et extr&ecirc;me (Grands Fonds 3000 Titanium). Les acheteurs sensibles &agrave; l&rsquo;ergonomie appr&eacute;cieront la couronne &agrave; 6 h et la s&eacute;curit&eacute; du CPS ; les puristes salueront la coh&eacute;rence d&rsquo;ensemble. Pour &eacute;clairer votre d&eacute;cision au-del&agrave; de la fiche technique, fiez-vous&nbsp;aux avis clients Dialicious, utiles pour comprendre confort, lisibilit&eacute; r&eacute;elle et ressenti au port&eacute;.
(Mise &agrave; jour Ao&ucirc;t 2025)

ZRC is a watch brand founded in 1904 in Geneva, Switzerland, by Edmond Zuccolo and Joseph Rochet. Born in the field of pocket-watch chains and later expandable metal bracelets, the brand now caters to enthusiasts of iconic tool divers, made famous by its Grands Fonds developed for the French Navy from the 1960s onward.
<h3>6 o&rsquo;clock crown, monobloc case and French Navy spirit</h3>
Engineered to meet the operational demands of French Navy mine-clearance divers, the Grands Fonds features a 6 o&rsquo;clock crown, a monobloc case and in-house solutions such as ECS (Easy Clean System) and CPS (Crown Protection System). In practice, the 6 o&rsquo;clock crown and CPS prevent the watch from being worn unless the crown is fully screwed down, reducing user error prior to immersion; ECS helps flush out salt to prevent crystallization under the bezel.
<h3>Grands Fonds and contemporary variants</h3>
The current collection translates the historical DNA (legibility, field ergonomics, tool-watch silhouette) into multiple sizes and performance levels. Whichever the model, the 6 o&rsquo;clock signature ensures instant readability and an immediately recognisable identity.
<ul>
<li>ZRC Grands Fonds MN64 &mdash; Core diver inspired by 1964, 300 m, bold legibility for versatile daily wear.</li>
<li>ZRC Grands Fonds Hertiage &mdash; Smaller 38 mm option retaining the 6 o&rsquo;clock crown signature for slimmer wrists.</li>
<li>ZRC Securicode &mdash; Reinterpretation of a late-1950s/1960s theme with historical design elements.</li>
</ul>
<h3>Positioning: pro tool, pricing and distribution</h3>
The brand&rsquo;s stance is that of an independent Swiss &ldquo;diving instrument,&rdquo; with production volumes not disclosed and selective distribution (specialist retailers and direct sales). As a guide, many steel references sit around &euro;2,500&ndash;3,000, while technical titanium pieces exceed &euro;4,000; special editions or precious-metal variants are significantly higher. Presence is established in Europe such as <a href="https://www.soprana.com/zrc-1904/?lang=en">Soprana</a> in Italy or <a href="https://junod-lausanne.ch/fr/collections/zrc">Junod</a> in Switzerland, and selected Asian/Middle-Eastern markets through a tight retail network.
<h3>Conclusion</h3>
ZRC speaks to those who value immediately recognisable tool-watch design with functional clarity and a strong signature. Your choice will likely fall between versatile daily wear (Grands Fonds 300/38), an emphatic historical link (MN64, Securicode), or a more technical, extreme approach (Grands Fonds 3000 Titanium). Ergonomics benefit from the 6 o&rsquo;clock crown and CPS safety; purists will appreciate the overall coherence. To refine your decision beyond the spec sheet, rely on Dialicious customer reviews to understand comfort, real-world legibility and on-wrist feel.
(Updated August 2025)

The&nbsp;Longines HydroConquest, launched in 2007, is Longines&rsquo; contemporary sports dive-watch collection. Developed as a more aquatic and technical extension of the Conquest world, it adopts from the beginning 300 metres of water resistance, a unidirectional rotating bezel, screw-down crown, screwed caseback, sapphire crystal and legibility suited to water activities. Its design rapidly stands apart through large Arabic numerals, substantial crown guards and broadly luminous hands, preventing it from appearing like a generic dive watch. The first automatic models use calibre L633 before the arrival of the L619 and subsequently the extended-power-reserve L888. In 2018, the aluminium bezel is replaced by ceramic and the dial is simplified.
A GMT function arrives in 2023 with the L844 calibre and independently adjustable local hour, followed by a 43 mm version in 2024. Over time, the family includes several diameters, automatic or quartz movements and stainless-steel or rubber straps and bracelets.
<h3>Design &amp; legibility: a diver recognisable through its large numerals</h3>
The HydroConquest adopts from its first generation a visual language different from many dive watches inspired by major historical standards. Its dial uses large Arabic numerals in the principal positions, combined with circular hour markers and broad hands coated with luminous material. Its crown guards are also highly prominent and directly contribute to the identity of the middle case. Early models use a comparatively busy aluminium bezel, while the 2018 generation significantly simplifies the design and introduces a ceramic insert that is more resistant to scratches. The large Arabic numerals combined with circular markers and substantial crown guards form the essential distinguishing feature of the HydroConquest. The date generally remains positioned at 3 o&rsquo;clock. GMT versions further alter the composition through an additional arrow-shaped hand and a two-tone 24-hour scale on the dial while preserving a genuine external dive bezel.
Legibility develops gradually across the collection. Early references display more information around the dial, with particularly substantial 6, 9 and 12 numerals and a highly detailed minute scale. In 2018, Longines reduces the number of graphic elements and creates a more open presentation while retaining the characteristic markers. Contemporary models use Swiss Super-LumiNova on their hands and indexes. The ceramic-bezel generation adopts a noticeably cleaner presentation without eliminating the codes that make a HydroConquest immediately identifiable. This development makes the watch easier to wear outside the water and strengthens its sport-chic character. On the 2023 GMT, the 6 and 9 o&rsquo;clock markers become round, the 12 o&rsquo;clock marker triangular and the 24-hour scale permits reading of a second time zone without turning the dive bezel into a GMT bezel.
<h3>Case, bracelet and comfort: 300 metres across several diameters</h3>
The collection has existed in numerous sizes, an important advantage over dive watches that impose one single diameter. The best-known early automatic models measure 41 mm, with smaller and larger versions appearing depending on period. The 2018 ceramic generation is notably offered in 41 and 43 mm, before the catalogue expands with 39 mm models. The GMT first appears in 41 mm and subsequently in 43 mm. Three hundred metres of water resistance remains the common functional characteristic despite very different diameters. Crown and caseback screw down and the bezel is unidirectional so that accidental movement can theoretically only increase the indicated dive duration. Sapphire receives anti-reflective treatment on one or both surfaces depending on generation. Thickness and length vary sufficiently to make trying the watch on worthwhile, especially with 43 mm models.
Bracelets and straps have also evolved. Early generations principally use a comparatively substantial steel bracelet with folding clasp, double safety system and integrated diving extension. Ceramic models add rubber straps coordinated with the dials and bezels. The GMT generation introduces a completely redesigned steel bracelet with H-shaped links and, for the first time at Longines, a micro-adjustment clasp allowing the length to be changed quickly without tools. The GMT micro-adjustment is an important practical improvement for accommodating changes in wrist size. Rubber reduces weight and better suits frequent water use. Steel provides greater presence and is more versatile for everyday wear. Certain GMT models are also compatible with NATO straps, strengthening their travel and adventure orientation.
<h3>Movement: from L633 to the L844 Traveller GMT</h3>
The first automatic HydroConquest watches notably use calibre L633, derived from the ETA 2824-2. It operates at 28,800 vibrations per hour and offers around 38 to 40 hours of power reserve. From 2013, certain references adopt the L619, based on the ETA 2892-A2, still operating at 28,800 vibrations per hour but with approximately 42 hours of autonomy and a slimmer construction. In 2018, the L888.2 changes the balance more substantially by reducing frequency to 25,200 vibrations per hour in order to reach approximately 64 hours of power reserve. The progressive increase in power reserve is the most noticeable mechanical development of three-hand HydroConquest watches. Later versions of the L888 notably benefit from a silicon hairspring and can reach approximately 72 hours depending on generation. These movements retain automatic winding, manual winding, hacking seconds and quick date correction.
Calibre L844.5 introduced with the HydroConquest GMT in 2023 adds a substantially more important functional development. It operates at 25,200 vibrations per hour, provides up to 72 hours of reserve and uses a silicon hairspring together with non-magnetic components. Longines states resistance to magnetic fields ten times greater than the ISO 764 benchmark. The L844.5 is a genuine Traveller GMT architecture because its local hour hand can be adjusted independently. When changing time zones, the owner therefore moves the main hour display in one-hour jumps without stopping the watch or changing the minutes and GMT hand. The latter retains the reference time against the 24-hour scale. This function is especially useful when travelling and distinguishes the HydroConquest GMT from simpler GMT watches where only the 24-hour hand is independently adjustable.
<h3>Chronological milestones and main models (2007&ndash;2025)</h3>
(2007) Longines HydroConquest Black First Automatic Generation:
The first generation establishes the technical foundations that will remain associated with the model for almost twenty years. The Longines HydroConquest L3.642.4.56.6 has a 41 mm stainless-steel case, sapphire crystal, screw-down crown, screwed caseback and a unidirectional rotating bezel with a black aluminium insert. Water resistance already reaches 300 metres. Its black dial is distinguished by large Arabic numerals at 6, 9 and 12 o&rsquo;clock, round hour markers and a date positioned at 3 o&rsquo;clock. Hands and markers use luminous material intended to support reading in darkness. Longines automatic calibre L633 is derived from the ETA 2824-2, operates at 28,800 vibrations per hour and provides around 38 to 40 hours of power reserve. Its steel bracelet has a double-security folding clasp and integrated diving extension. This watch establishes the original balance between serious performance, proven Swiss mechanics and pricing below the most established luxury dive watches.
(2013) Longines HydroConquest Blue New L619 Generation:
The redesign of the early 2010s retains the overall visual architecture but changes several technical and graphic elements. The Longines HydroConquest L3.695.4.03.6 still uses a 41 mm stainless-steel case, sapphire crystal, screw-down crown, screwed caseback and unidirectional bezel with a blue aluminium insert. Water resistance remains fixed at 300 metres. Its blue dial retains the characteristic large Arabic numerals, applied indexes and date at 3 o&rsquo;clock. The most interesting change concerns calibre L619, based on the ETA 2892-A2. It operates at 28,800 vibrations per hour and provides approximately 42 hours of power reserve. Slimmer than the L633 architecture, it also offers manual winding, hacking seconds and quick-set date. Its steel bracelet retains a folding clasp, double safety and diving extension. This generation forms an important intermediate stage: visually it remains close to the original HydroConquest while preparing the mechanical development that ultimately leads to the L888.
(2018) Longines HydroConquest Ceramic Black Major Aesthetic Redesign:
The generation introduced in 2018 represents the most visible transformation of the classical HydroConquest. The Longines HydroConquest L3.781.4.56.6 has a 41 mm stainless-steel case, a unidirectional bezel now equipped with a black ceramic insert, anti-reflective sapphire crystal, screw-down crown and screwed caseback. Water resistance remains 300 metres. Its sunray black dial is simplified: the minute track becomes less intrusive and several markers are redesigned to create more open space. The large Arabic numerals nevertheless remain and preserve the model&rsquo;s identity. Automatic calibre L888.2 operates at 25,200 vibrations per hour and increases power reserve to approximately 64 hours, an important improvement over the 38 to 42 hours of previous generations. Steel bracelet and rubber strap configurations are available depending on reference. This generation is also offered in 43 mm and becomes the aesthetic basis for many HydroConquest watches sold during subsequent years.
(2020) Longines HydroConquest Green Ceramic and a New Colour:
The ceramic collection expands in 2020 with a colour that rapidly becomes one of its most recognisable alternatives. The Longines HydroConquest L3.781.4.06.6 retains the 41 mm stainless-steel case, sapphire crystal, 300 metres of water resistance, screw-down crown and ceramic unidirectional bezel of the 2018 generation. Here the dial and bezel adopt a green shade that significantly changes the personality of the watch without altering its construction. Large Arabic numerals, date at 3 o&rsquo;clock and Super-LumiNova remain present. The movement is an automatic calibre from the L888 family operating at 25,200 vibrations per hour and providing substantially greater reserve than the earliest HydroConquest watches. The watch is notably offered on a steel bracelet with a safety folding clasp. This reference illustrates how Longines develops the collection through colour rather than through a multiplication of complications while preserving an architecture suited both to diving and to everyday sporting use.
(2023) Longines HydroConquest GMT Blue First Dual-Time Model:
The arrival of the GMT represents the most significant functional development of the family since 2007. The Longines HydroConquest GMT L3.790.4.96.6 adopts a redesigned 41 mm stainless-steel case approximately 12.9 mm thick, a unidirectional blue ceramic bezel with a luminous capsule, sapphire crystal treated on both sides and 300 metres of water resistance. Its sunray blue dial receives a two-tone 24-hour scale and a central arrow-shaped GMT hand. The date remains at 3 o&rsquo;clock. Exclusive calibre L844.5 operates at 25,200 vibrations per hour and provides up to 72 hours of power reserve. Its independently adjustable local hour makes it a Traveller GMT suited to crossing time zones. A silicon hairspring and non-magnetic components increase resistance to magnetic fields. The new steel H-link bracelet receives a micro-adjustment clasp, while rubber and NATO options are also available.
(2024) Longines HydroConquest GMT 43 Blue Large Traveller Format:
One year after the 41 mm version, Longines expands the GMT with a diameter aimed at wrists seeking more substantial presence. The Longines HydroConquest GMT L3.890.4.96.6 has a 43 mm stainless-steel case, blue ceramic unidirectional dive bezel, sapphire with anti-reflective treatment on both sides, screw-down crown and screwed caseback. Water resistance remains 300 metres despite the GMT function. Its sunray blue dial uses the two-tone 24-hour scale, date at 3 o&rsquo;clock and a coloured GMT hand. Calibre L844.5 retains 25,200 vibrations per hour, up to 72 hours of reserve, a silicon hairspring and independent local-hour adjustment. The steel bracelet uses the micro-adjustment clasp, while a blue rubber version is also available. This variation therefore does not change the technical package introduced in 2023 but provides a significantly larger alternative on the wrist.
<h3>Choosing the right version: diameter, generation, ceramic and GMT function</h3>
For a comparatively accessible pre-owned purchase, the aluminium-bezel HydroConquest watches remain interesting. L633 references are robust and straightforward to service, while L619 models provide a slimmer movement. Their power reserve is nevertheless limited to around 40 hours and aluminium marks more easily than ceramic. The L619 generation is particularly interesting for someone seeking the original aesthetic with proven mechanics. Bezel condition, crown operation and water-resistance history should be checked before considering an older 300-metre watch ready for diving.
The ceramic generation from 2018 represents the best compromise for modern use without GMT functionality. Its dial is cleaner, the bezel better resists scratches and the L888 substantially increases autonomy. The choice between 39, 41 and 43 mm according to period also makes it possible to adapt the watch more precisely to the wrist. The 41 mm remains the most versatile format for someone wanting sporting presence without moving to the volume of the 43 mm. Smaller wrists should nevertheless examine the 39 mm references.
The HydroConquest GMT is considerably more relevant for someone who actually travels. Its independent local hour allows the main display to be moved forwards or backwards quickly when changing time zones while retaining home time through the 24-hour hand. It simultaneously preserves a genuine unidirectional dive bezel. The GMT is the most complete choice for combining diving, travel and everyday use in one watch. Its dial is nevertheless busier and its price higher than that of a classical three-hand model.
Bracelet or strap choice depends directly on use. Steel provides greater versatility and tolerates everyday wear well but increases weight. Rubber is more comfortable in heat, dries immediately and better suits the water. On GMT models, micro-adjustment noticeably improves both solutions. Rubber is the most coherent choice when the watch is genuinely used for swimming or water sports. Steel is better suited to someone wanting to move easily from the beach to an office environment.
Finally, 300 metres of water resistance should never be regarded as permanent on a pre-owned watch. An ageing gasket, damaged crown or poorly executed intervention can compromise this performance without any visible external sign. A recent water-resistance test is essential before diving with an older or pre-owned HydroConquest. For mainly land-based everyday use, the final decision will depend more on dimensions, autonomy, aluminium versus ceramic and genuine interest in the GMT function. Other customers&rsquo; opinions are essential.
<h3>Conclusion</h3>
The Longines HydroConquest is aimed at enthusiasts seeking a 300-metre Swiss dive watch capable of combining genuine sporting construction with an appearance refined enough for everyday use. Early L633 and L619 generations retain the original graphic character and now provide interesting pre-owned options. The 2018 ceramic redesign adds greater scratch resistance, a cleaner dial and longer autonomy through the L888. The 2023 and 2024 GMT models add a genuine independently adjustable local hour, 72 hours of reserve and a micro-adjustment clasp without sacrificing the dive bezel. The choice therefore principally depends on diameter, desired level of modernity and genuine usefulness of the second time zone.
To compare comfort, accuracy, bracelet quality and long-term behaviour with actual owner experience,&nbsp;Dialicious customer reviews provide a particularly useful complement.
(Updated August 2026)

Swisswatch's review on his Longines HydroConquest

Strength and character

Pros & Cons for this watch

Where to buy your Longines?

YOU ARE :

Other reviews published by Swisswatch

Victorinox
Maverick

Alpina
Alpiner Extreme

Tissot
T-Race Swissmatic

Tissot
Ballade Powermatic 80 COSC

Other Longines HydroConquest owners' reviews

Longines
HydroConquest

Longines
HydroConquest

Longines
HydroConquest

Longines
HydroConquest

Longines
HydroConquest

Customize your Longines with our selection of accessories:

Eagle Eye Watches

Iconic Switzerland

Swisswatch's review on his Longines HydroConquest

Strength and character

Pros & Cons for this watch

Where to buy your Longines?

YOU ARE :

Other reviews published by Swisswatch

VictorinoxMaverick

AlpinaAlpiner Extreme

TissotT-Race Swissmatic

TissotBallade Powermatic 80 COSC

Other Longines HydroConquest owners' reviews

LonginesHydroConquest

LonginesHydroConquest

LonginesHydroConquest

LonginesHydroConquest

LonginesHydroConquest

Customize your Longines with our selection of accessories:

Eagle Eye Watches

Iconic Switzerland

Victorinox
Maverick

Alpina
Alpiner Extreme

Tissot
T-Race Swissmatic

Tissot
Ballade Powermatic 80 COSC

Longines
HydroConquest

Longines
HydroConquest

Longines
HydroConquest

Longines
HydroConquest

Longines
HydroConquest