Iconic watch art prints. Made in Switzerland, lifetime guarantee

The must-have Macro Loupe for all watch lovers

This ZRC Bronze limited to 170 copies is the same but enormously different from the other ZRCs, the hand-patinated brass dial is unique each time, the hands are also different from the other ZRCs, the Bronze which evolves and changes color over the years also has a unique side. This watch amazed me

Gorgeous 

This ZRC diving watch with its crown at 6 o'clock changes everything, it gives it a look that is different from other watches and you don't have this crown that fits into your hand, even if this technical specificity was made for divers (I'll let you find out about that) an exceptional watch

A crown at 6 o'clock changes everything

The Dietrich OT 3 is a watch or rather a sculpture in an atypical watch case... Difficult to define but for me it is a work of organic art and there is this little star of the seconds which turns... A high quality glass and an exceptional watch and above all a watch which does not leave one indifferent

Exceptional

The BR a circle in a square recognizable in the world of watchmaking... A favorite for me as soon as the BR 01 46mm came out there is also the BR 03 42mm and the BRS 39mm and I chose this model which for me now is quite large, because you should not trust its dimension of 39mm because it is a square and it is larger than a round of the same dimension and of course the look of the dial and the hands brought towards the dials of aviation... The quality is there and the look is apart for me in watchmaking

A circle in a square

A favorite watch with a special case and a large crown at 6 o'clock which makes it a case different from other watches and what can I say about the super readable Magnum hands with superb luminosity... The quality of the case and the glass are impeccable... I have no regrets about my choice

Favorite

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)

La ZRC Grands Fonds MN64 &Eacute;dition Limit&eacute;e Phenix incarne une vision particuli&egrave;rement symbolique et engag&eacute;e de la montre de plong&eacute;e utilitaire. D&eacute;velopp&eacute;e &agrave; l&rsquo;occasion des 120 ans de ZRC, cette &eacute;dition limit&eacute;e ne se contente pas de proposer une variation esth&eacute;tique de la Grands Fonds MN64 1000M : elle s&rsquo;inscrit dans une v&eacute;ritable d&eacute;marche m&eacute;morielle autour du sous-marin Q157 PHENIX, disparu en baie de Cam Ranh au Vietnam le 15 juin 1939. Par cette montre, ZRC rend hommage aux 76 marins disparus lors du naufrage, tout en associant cette &eacute;vocation historique &agrave; l&rsquo;une de ses plongeuses les plus techniques.
Cette &eacute;dition est limit&eacute;e &agrave;&nbsp;200 pi&egrave;ces et propos&eacute;e au tarif de 3 990 &euro;.
Ce qui rend cette r&eacute;f&eacute;rence particuli&egrave;rement int&eacute;ressante, c&rsquo;est sa capacit&eacute; &agrave; conjuguer charge comm&eacute;morative, coh&eacute;rence technique et identit&eacute; de plongeuse professionnelle. La marque pr&eacute;cise que la montre est mise en valeur dans un coffret sp&eacute;cifique comprenant la tape de bouche du PHENIX ainsi qu&rsquo;une reproduction du sous-marin &agrave; l&rsquo;&eacute;chelle 1/750e. Mais au-del&agrave; de cette dimension d&rsquo;hommage, la montre reste pleinement fid&egrave;le &agrave; la logique ZRC : une construction monobloc, une lunette ECS&reg;, une couronne &agrave; 6 h avec Crown Protection System&trade; et une &eacute;tanch&eacute;it&eacute; extr&ecirc;me, au service d&rsquo;une vraie montre-outil.
<h3>Quelles sont les caract&eacute;ristiques de la ZRC Grands Fonds MN64 &Eacute;dition Limit&eacute;e Phenix ?</h3>
Bo&icirc;tier de la ZRC Grands Fonds MN64 &Eacute;dition Limit&eacute;e Phenix
Le bo&icirc;tier de la ZRC Grands Fonds MN64 &Eacute;dition Limit&eacute;e Phenix est r&eacute;alis&eacute; en acier inoxydable 316L amagn&eacute;tique et adopte une construction monobloc avec fond et couronne viss&eacute;s. Son diam&egrave;tre de 41,5 mm lui donne une pr&eacute;sence affirm&eacute;e au poignet, en phase avec sa vocation de montre de plong&eacute;e professionnelle. ZRC pr&eacute;cise &eacute;galement une conformit&eacute; &agrave; la norme ISO764 : 4800 A/m, renfor&ccedil;ant encore son profil technique. Le fond &agrave; d&eacute;formation programm&eacute;e, exclusivit&eacute; de la marque, participe &agrave; cette logique fonctionnelle. Le bo&icirc;tier est surmont&eacute; d&rsquo;un verre saphir bomb&eacute; de 3 mm avec traitement antireflet.
Cadran bleu soleill&eacute; et identit&eacute; visuelle
Le cadran de la MN64 &Eacute;dition Limit&eacute;e Phenix se distingue par son bleu soleill&eacute;, d&eacute;velopp&eacute; par ZRC pour imiter les reflets de l&rsquo;eau en mer ainsi que les rayons du soleil p&eacute;n&eacute;trant les profondeurs abyssales. Cette intention donne &agrave; la montre une profondeur visuelle plus expressive qu&rsquo;un simple cadran bleu uni. Le r&eacute;sultat reste coh&eacute;rent avec l&rsquo;esprit technique du mod&egrave;le tout en lui apportant une dimension plus &eacute;motionnelle, particuli&egrave;rement pertinente dans le cadre de cette &eacute;dition hommage. Ce cadran joue donc &agrave; la fois sur la lisibilit&eacute;, sur l&rsquo;&eacute;vocation du monde sous-marin et sur une forme de pr&eacute;sence plus sensible que strictement instrumentale.
Lunette, couronne et architecture fonctionnelle
L&rsquo;un des &eacute;l&eacute;ments les plus distinctifs de cette ZRC r&eacute;side dans son architecture de plong&eacute;e. La lunette tournante unidirectionnelle &agrave; 60 divisions re&ccedil;oit un insert en c&eacute;ramique et s&rsquo;appuie sur le syst&egrave;me ECS&reg;, brevet&eacute; par ZRC, con&ccedil;u pour favoriser un rin&ccedil;age optimal apr&egrave;s plong&eacute;e et &eacute;viter l&rsquo;accumulation d&rsquo;impuret&eacute;s ou de cristaux de sel entre la lunette et la bo&icirc;te. La couronne viss&eacute;e &agrave; 6 heures, &agrave; pas invers&eacute;, constitue une autre signature forte. Elle fait partie du Crown Protection System&trade; et participe pleinement &agrave; l&rsquo;identit&eacute; fonctionnelle de la Grands Fonds. Cette approche montre bien que, chez ZRC, le dessin reste toujours subordonn&eacute; &agrave; une logique d&rsquo;usage r&eacute;el.&nbsp;
Calibre et performances
La ZRC Grands Fonds MN64 &Eacute;dition Limit&eacute;e Phenix est anim&eacute;e par le calibre Sellita SW300-1 &ldquo;Elabor&eacute;&rdquo;. Ce mouvement suisse &agrave; remontage automatique bat &agrave; 28 800 alternances par heure (4 Hz) et offre une r&eacute;serve de marche de 56 heures. ZRC annonce une pr&eacute;cision de +5 secondes par jour, avec une amplitude donn&eacute;e comme comprise entre 0 et +10 secondes par jour maximum. La montre affiche les heures, minutes et secondes, dans une logique de lisibilit&eacute; et de fiabilit&eacute;. Le choix du SW300-1 Elabor&eacute; renforce la cr&eacute;dibilit&eacute; de la pi&egrave;ce dans un registre de montre-outil hautement technique.
Bracelet et confort
La fiche officielle indique que cette &eacute;dition Phenix est mont&eacute;e sur un bracelet en caoutchouc FKM, compatible avec une boucle ardillon en acier. ZRC le d&eacute;crit comme un bracelet inspir&eacute; du design du bracelet m&eacute;tal, tr&egrave;s confortable et disponible dans de nombreux coloris sur la gamme. Sur cette version, ce choix du FKM est coh&eacute;rent avec la vocation de plong&eacute;e de la montre : il apporte souplesse, r&eacute;sistance et confort dans un usage sportif ou aquatique, sans nuire &agrave; la force visuelle du bo&icirc;tier.&nbsp;
&Eacute;tanch&eacute;it&eacute; et usage au quotidien
La ZRC Grands Fonds MN64 &Eacute;dition Limit&eacute;e Phenix se distingue par un niveau d&rsquo;&eacute;tanch&eacute;it&eacute; particuli&egrave;rement impressionnant. La marque annonce une &eacute;tanch&eacute;it&eacute; garantie pour 1000 m&egrave;tres et test&eacute;e &agrave; 1500 m&egrave;tres, ce qui la place clairement dans la cat&eacute;gorie des plongeuses &agrave; vocation s&eacute;rieuse. Cette capacit&eacute; technique, combin&eacute;e &agrave; la construction monobloc, &agrave; la couronne s&eacute;curis&eacute;e et &agrave; la lunette ECS&reg;, donne au mod&egrave;le une cr&eacute;dibilit&eacute; forte dans l&rsquo;univers des montres-outils. Pourtant, malgr&eacute; cette radicalit&eacute;, son cadran bleu soleill&eacute; et sa dimension comm&eacute;morative lui conf&egrave;rent aussi une pr&eacute;sence plus singuli&egrave;re et narrative qu&rsquo;une simple plongeuse instrumentale.&nbsp;
<h3>ZRC Grands Fonds MN64 &Eacute;dition Limit&eacute;e Phenix : une plongeuse comm&eacute;morative, robuste et sans concession</h3>
Avec la MN64 &Eacute;dition Limit&eacute;e Phenix, ZRC propose bien plus qu&rsquo;une simple variation de sa Grands Fonds. La limitation &agrave; 200 pi&egrave;ces, l&rsquo;hommage au sous-marin Q157 PHENIX, le cadran bleu soleill&eacute;, le bo&icirc;tier monobloc, la lunette ECS&reg;, la couronne &agrave; 6 h et le Sellita SW300-1 Elabor&eacute; composent un ensemble d&rsquo;une grande coh&eacute;rence. Cette montre s&eacute;duira les amateurs qui recherchent une vraie plongeuse de caract&egrave;re, techniquement cr&eacute;dible, visuellement forte et porteuse d&rsquo;une dimension historique forte.
<h3>Conclusion</h3>
La ZRC Grands Fonds MN64 &Eacute;dition Limit&eacute;e Phenix s&rsquo;adresse aux amateurs qui recherchent une montre de plong&eacute;e robuste, originale et charg&eacute;e de sens. Gr&acirc;ce &agrave; son architecture fonctionnelle unique, &agrave; son &eacute;tanch&eacute;it&eacute; impressionnante, &agrave; son mouvement suisse &eacute;prouv&eacute; et &agrave; son cadran bleu soleill&eacute; inspir&eacute; du monde sous-marin, elle propose une lecture particuli&egrave;rement coh&eacute;rente de la plongeuse professionnelle comm&eacute;morative contemporaine.
Les avis clients Dialicious sont une solution pertinente pour choisir la montre qui nous ressemble.
(Mise &agrave; jour Mai 2026)

The ZRC Grands Fonds MN64 Limited Edition Phenix embodies a particularly symbolic and purposeful vision of the utilitarian dive watch. Developed for ZRC&rsquo;s 120th anniversary, this limited edition is not merely an aesthetic variation of the Grands Fonds MN64 1000M. It is part of a true memorial approach centred on the submarine Q157 PHENIX, lost in Cam Ranh Bay in Vietnam on 15 June 1939. Through this watch, ZRC pays tribute to the 76 sailors who disappeared in the sinking, while pairing this historical evocation with one of its most technical divers.
This edition is limited to&nbsp;200 pieces and priced at&nbsp;3,990 EUR.&nbsp;
What makes this reference especially interesting is its ability to combine commemorative meaning, technical coherence and the identity of a professional dive watch. The brand explains that the watch is presented in a specific box set including the PHENIX muzzle cap as well as a 1/750 scale reproduction of the submarine. Yet beyond this tribute dimension, the watch remains entirely faithful to the ZRC logic: a monobloc construction, ECS&reg; bezel, crown at 6 o&rsquo;clock with Crown Protection System&trade; and extreme water resistance, all in the service of a true tool watch.&nbsp;
<h3>What are the characteristics of the ZRC Grands Fonds MN64 Limited Edition Phenix?</h3>
Case of the ZRC Grands Fonds MN64 Limited Edition Phenix
The case of the ZRC Grands Fonds MN64 Limited Edition Phenix is made of amagnetic 316L stainless steel and uses a monobloc construction with screw-down caseback and crown. Its 41.5 mm diameter gives it strong wrist presence, in keeping with its purpose as a professional dive watch. ZRC also specifies compliance with ISO764: 4800 A/m, which further reinforces its technical profile. The programmed-deformation caseback, exclusive to the brand, belongs to the same functional logic. The case is topped by a 3 mm domed sapphire crystal with anti-reflective treatment.&nbsp;
Sunburst blue dial and visual identity
The dial of the MN64 Limited Edition Phenix stands out through its sunburst blue finish, developed by ZRC to imitate reflections on the sea and the rays of sunlight penetrating abyssal depths. This intention gives the watch greater visual depth than a simple flat blue dial. The result remains coherent with the model&rsquo;s technical spirit while also adding a more emotional dimension, especially relevant in the context of this tribute edition. The dial therefore works both on legibility and on evoking the underwater world, while giving the watch a more narrative presence than a purely instrumental diver.
Bezel, crown and functional architecture
One of the most distinctive elements of this ZRC lies in its diving-oriented architecture. The unidirectional rotating bezel with 60 divisions receives a ceramic insert and relies on the brand&rsquo;s patented ECS&reg; system, designed to ensure optimal rinsing after a dive and prevent impurities or salt crystals from accumulating between bezel and case. The screw-down crown at 6 o&rsquo;clock, with reverse thread, is another strong signature. It forms part of the Crown Protection System&trade; and fully contributes to the functional identity of the Grands Fonds. This approach shows clearly that, at ZRC, design always remains subordinate to a logic of real-world use.&nbsp;
Movement and performance
The ZRC Grands Fonds MN64 Limited Edition Phenix is powered by the Sellita SW300-1 &ldquo;Elabor&eacute;&rdquo; calibre. This Swiss automatic movement beats at 28,800 vibrations per hour (4 Hz) and offers a 56-hour power reserve. ZRC states an accuracy of +5 seconds per day, with an amplitude given as between 0 and +10 seconds per day maximum. The watch displays hours, minutes and seconds in a logic of readability and reliability. The choice of the SW300-1 Elabor&eacute; reinforces the credibility of the piece within a highly technical tool-watch register.
Strap and comfort
The official page indicates that this Phenix edition is fitted with an FKM rubber strap, compatible with a steel pin buckle. ZRC describes it as a strap inspired by the design of the metal bracelet, highly comfortable and available in several colours across the range. On this version, the use of FKM is coherent with the diving vocation of the watch: it brings flexibility, resistance and comfort in sporty or aquatic use without compromising the strong visual character of the case.&nbsp;
Water resistance and everyday use
The ZRC Grands Fonds MN64 Limited Edition Phenix stands out through a particularly impressive level of water resistance. The brand states water resistance guaranteed to 1000 metres and tested to 1500 metres, clearly placing it in the category of serious dive watches. This technical capability, combined with the monobloc construction, secured crown and ECS&reg; bezel, gives the model strong credibility within the world of tool watches. Yet despite this radical nature, its sunburst blue dial and commemorative dimension also lend it a more singular and narrative presence than a simple instrument diver.&nbsp;
<h3>ZRC Grands Fonds MN64 Limited Edition Phenix: a commemorative diver, robust and uncompromising</h3>
With the MN64 Limited Edition Phenix, ZRC offers far more than a simple variation of its Grands Fonds. The 200-piece limitation, the tribute to the Q157 PHENIX submarine, the sunburst blue dial, the monobloc case, ECS&reg; bezel, crown at 6 o&rsquo;clock and Sellita SW300-1 Elabor&eacute; all come together in a highly coherent whole. This watch will appeal to enthusiasts looking for a true characterful diver that is technically credible, visually strong and backed by a powerful historical dimension.&nbsp;
<h3>Conclusion</h3>
The ZRC Grands Fonds MN64 Limited Edition Phenix is aimed at enthusiasts looking for a dive watch that is robust, original and full of meaning. Thanks to its unique functional architecture, impressive water resistance, proven Swiss movement and sunburst blue dial inspired by the underwater world, it offers a particularly coherent reading of the contemporary commemorative professional diver.&nbsp;
Dialicious customer reviews are a relevant way to choose the watch that truly suits you.
(Updated May 2026)

La ZRC Grands Fonds MN64 Heterium Rubber incarne une vision particuli&egrave;rement affirm&eacute;e de la montre de plong&eacute;e utilitaire. H&eacute;riti&egrave;re contemporaine de la Grands Fonds 300&reg; originale, cette d&eacute;clinaison sur bracelet caoutchouc conserve toute la radicalit&eacute; technique propre &agrave; ZRC, tout en proposant une lecture plus moderne et plus imm&eacute;diate de la montre de plong&eacute;e professionnelle. Avec son cadran d&eacute;grad&eacute; bleu marine et noir, son bo&icirc;tier satin&eacute; et son bracelet FKM, cette version revendique pleinement son appartenance &agrave; l&rsquo;univers des tool watches sans compromis.
Le mod&egrave;le est affich&eacute; au tarif de&nbsp;3 390 &euro;.
Ce qui rend cette r&eacute;f&eacute;rence particuli&egrave;rement int&eacute;ressante, c&rsquo;est sa capacit&eacute; &agrave; conjuguer une esth&eacute;tique de plongeuse traditionnelle avec des solutions techniques profond&eacute;ment identitaires. ZRC ne propose pas simplement une montre de plong&eacute;e robuste : la marque construit un objet o&ugrave; chaque &eacute;l&eacute;ment r&eacute;pond &agrave; une logique fonctionnelle, qu&rsquo;il s&rsquo;agisse de la couronne &agrave; 6 h, du Crown Protection System&trade;, de la lunette ECS&reg; ou encore du fond &agrave; d&eacute;formation programm&eacute;e. La MN64 Heterium Rubber s&rsquo;inscrit ainsi dans une approche o&ugrave; la coh&eacute;rence technique prime autant que le style.&nbsp;
<h3>Quelles sont les caract&eacute;ristiques de la ZRC Grands Fonds MN64 Heterium Rubber ?</h3>
Bo&icirc;tier de la ZRC Grands Fonds MN64 Heterium Rubber
Le bo&icirc;tier de la ZRC Grands Fonds MN64 Heterium Rubber est r&eacute;alis&eacute; en acier inoxydable 316L amagn&eacute;tique et adopte une construction monobloc avec fond et couronne viss&eacute;s. Son diam&egrave;tre de 41,5 mm lui donne une pr&eacute;sence affirm&eacute;e au poignet, en phase avec sa vocation de montre de plong&eacute;e professionnelle. ZRC pr&eacute;cise &eacute;galement une conformit&eacute; &agrave; la norme ISO764 : 4800 A/m, renfor&ccedil;ant encore son profil technique. Le fond &agrave; d&eacute;formation programm&eacute;e, exclusivit&eacute; de la marque, participe &agrave; cette logique fonctionnelle. Le bo&icirc;tier est surmont&eacute; d&rsquo;un verre saphir bomb&eacute; de 3 mm avec traitement antireflet.
Cadran et lisibilit&eacute;
Le cadran de la MN64 Heterium Rubber se distingue par son d&eacute;grad&eacute; bleu marine et noir, une combinaison qui lui apporte profondeur visuelle et vraie personnalit&eacute;. Cette transition chromatique renforce la dimension contemporaine du mod&egrave;le sans l&rsquo;&eacute;loigner de son registre purement utilitaire. La lisibilit&eacute; reste au c&oelig;ur du projet, dans une montre pens&eacute;e avant tout pour la plong&eacute;e et l&rsquo;usage professionnel. L&rsquo;ensemble conserve ainsi un visage tr&egrave;s coh&eacute;rent, o&ugrave; la couleur et la fonction s&rsquo;&eacute;quilibrent intelligemment.
Lunette, couronne et architecture fonctionnelle
L&rsquo;un des &eacute;l&eacute;ments les plus distinctifs de cette ZRC r&eacute;side dans son architecture de plong&eacute;e. La lunette tournante unidirectionnelle &agrave; 60 divisions re&ccedil;oit un insert en c&eacute;ramique et s&rsquo;appuie sur le syst&egrave;me ECS&reg;, brevet&eacute; par ZRC, con&ccedil;u pour favoriser un rin&ccedil;age optimal apr&egrave;s plong&eacute;e et &eacute;viter l&rsquo;accumulation d&rsquo;impuret&eacute;s ou de cristaux de sel entre la lunette et la bo&icirc;te. La couronne viss&eacute;e &agrave; 6 heures, &agrave; pas invers&eacute;, constitue une autre signature forte. Elle fait partie du Crown Protection System&trade;, et le bracelet ne peut d&rsquo;ailleurs se fermer que si cette couronne est parfaitement viss&eacute;e. Cette solution originale exprime parfaitement la philosophie ZRC : chaque d&eacute;tail de design doit aussi renforcer la s&eacute;curit&eacute; et la fonctionnalit&eacute;.&nbsp;
Calibre et performances
La ZRC Grands Fonds MN64 Heterium Rubber est anim&eacute;e par le calibre Sellita SW300-1 &ldquo;Elabor&eacute;&rdquo;. Ce mouvement suisse &agrave; remontage automatique bat &agrave; 28 800 alternances par heure (4 Hz) et offre une r&eacute;serve de marche de 56 heures. La montre affiche les heures, minutes et secondes, dans une logique de lisibilit&eacute; et de fiabilit&eacute;. ZRC met clairement l&rsquo;accent sur le s&eacute;rieux du mouvement, choisi pour accompagner l&rsquo;esprit robuste et professionnel de la pi&egrave;ce.
Bracelet et confort
Dans cette configuration, la MN64 Heterium est mont&eacute;e sur un bracelet en caoutchouc FKM. ZRC le pr&eacute;sente comme un bracelet inspir&eacute; du design du bracelet m&eacute;tal, compatible avec une boucle ardillon en acier, tr&egrave;s confortable et disponible dans plusieurs coloris. Ce choix du FKM est coh&eacute;rent avec la vocation plongeuse de la montre : il apporte souplesse, r&eacute;sistance et confort dans un usage sportif ou aquatique, tout en renfor&ccedil;ant le caract&egrave;re plus contemporain de cette version Rubber.
&Eacute;tanch&eacute;it&eacute; et usage au quotidien
La ZRC Grands Fonds MN64 Heterium Rubber se distingue par un niveau d&rsquo;&eacute;tanch&eacute;it&eacute; particuli&egrave;rement impressionnant. La marque annonce une &eacute;tanch&eacute;it&eacute; garantie pour 1000 m&egrave;tres et test&eacute;e &agrave; 1500 m&egrave;tres, ce qui la place clairement dans la cat&eacute;gorie des plongeuses &agrave; vocation s&eacute;rieuse. Cette capacit&eacute; technique, combin&eacute;e &agrave; la construction monobloc, &agrave; la couronne s&eacute;curis&eacute;e et &agrave; la lunette ECS&reg;, donne au mod&egrave;le une cr&eacute;dibilit&eacute; forte dans l&rsquo;univers des montres-outils. Pourtant, malgr&eacute; cette radicalit&eacute;, son cadran d&eacute;grad&eacute; et son bracelet FKM lui permettent aussi de rester portable dans un usage quotidien plus large.&nbsp;
<h3>ZRC Grands Fonds MN64 Heterium Rubber : une plongeuse fran&ccedil;aise d&rsquo;esprit, robuste et sans concession</h3>
Avec la MN64 Heterium Rubber, ZRC propose une montre de plong&eacute;e qui assume pleinement sa logique fonctionnelle. Le bo&icirc;tier monobloc, la couronne &agrave; 6 h, le syst&egrave;me ECS&reg;, l&rsquo;&eacute;tanch&eacute;it&eacute; extr&ecirc;me, le Sellita SW300-1 Elabor&eacute; et le bracelet FKM composent un ensemble d&rsquo;une grande coh&eacute;rence. Cette montre s&eacute;duira les amateurs qui recherchent une vraie plongeuse de caract&egrave;re, techniquement cr&eacute;dible, visuellement forte et fid&egrave;le &agrave; une tradition d&rsquo;ing&eacute;nierie horlog&egrave;re orient&eacute;e vers l&rsquo;usage r&eacute;el.
<h3>Conclusion</h3>
La ZRC Grands Fonds MN64 Heterium Rubber s&rsquo;adresse aux amateurs qui recherchent une montre de plong&eacute;e robuste, originale et techniquement tr&egrave;s aboutie. Gr&acirc;ce &agrave; son architecture fonctionnelle unique, &agrave; son &eacute;tanch&eacute;it&eacute; impressionnante, &agrave; son mouvement suisse &eacute;prouv&eacute; et &agrave; son bracelet FKM, elle propose une lecture particuli&egrave;rement coh&eacute;rente de la plongeuse professionnelle contemporaine.
Les avis de propri&eacute;taires Dialicious sont une solution pertinente pour choisir la montre qui nous ressemble.
(Mise &agrave; jour Mai 2026)

The ZRC Grands Fonds MN64 Heterium Rubber embodies a particularly assertive vision of the utilitarian dive watch. A contemporary heir to the original Grands Fonds 300&reg;, this rubber-strap version retains all the technical radicality that defines ZRC while offering a more modern and immediate interpretation of the professional dive watch. With its navy-to-black gradient dial, satin-finished case and FKM rubber strap, this version fully embraces its place in the world of uncompromising tool watches.
The model is listed at 3,390 &euro;.
What makes this reference especially interesting is its ability to combine the aesthetics of a traditional dive watch with deeply distinctive technical solutions. ZRC is not simply offering a robust dive watch: the brand builds an object in which every element responds to a functional logic, whether it is the crown at 6 o&rsquo;clock, the Crown Protection System&trade;, the ECS&reg; bezel system or the programmed-deformation caseback. The MN64 Heterium Rubber therefore belongs to an approach where technical coherence matters just as much as style.
<h3>What are the characteristics of the ZRC Grands Fonds MN64 Heterium Rubber?</h3>
Case of the ZRC Grands Fonds MN64 Heterium Rubber
The case of the ZRC Grands Fonds MN64 Heterium Rubber is made of amagnetic 316L stainless steel and uses a monobloc construction with screw-down caseback and crown. Its 41.5 mm diameter gives it strong wrist presence, in keeping with its purpose as a professional dive watch. ZRC also specifies compliance with ISO764: 4800 A/m, which further reinforces its technical profile. The programmed-deformation caseback, exclusive to the brand, is part of the same functional logic. The case is topped by a 3 mm domed sapphire crystal with anti-reflective treatment.&nbsp;
Dial and readability
The dial of the MN64 Heterium Rubber stands out through its navy-to-black gradient, a combination that gives it visual depth and real personality. This chromatic transition reinforces the model&rsquo;s contemporary dimension without taking it away from its purely utilitarian register. Readability remains central to the project, in a watch designed first and foremost for diving and professional use. The whole therefore retains a very coherent face, where colour and function are intelligently balanced.&nbsp;
Bezel, crown and functional architecture
One of the most distinctive elements of this ZRC lies in its diving-oriented architecture. The unidirectional rotating bezel with 60 divisions receives a ceramic insert and relies on the brand&rsquo;s patented ECS&reg; system, designed to ensure optimal rinsing after a dive and to prevent impurities or salt crystals from accumulating between bezel and case. The screw-down crown at 6 o&rsquo;clock, with reverse thread, is another strong signature. It forms part of the Crown Protection System&trade;, and the strap cannot even be closed unless the crown is fully screwed down. This unusual solution perfectly expresses the ZRC philosophy: every design detail must also reinforce safety and functionality.&nbsp;
Movement and performance
The ZRC Grands Fonds MN64 Heterium Rubber is powered by the Sellita SW300-1 &ldquo;Elabor&eacute;&rdquo; calibre. This Swiss automatic movement beats at 28,800 vibrations per hour (4 Hz) and offers a 56-hour power reserve. The watch displays hours, minutes and seconds in a logic of readability and reliability. ZRC clearly emphasises the seriousness of the movement, chosen to support the robust and professional spirit of the piece.&nbsp;
Strap and comfort
In this configuration, the MN64 Heterium is fitted with an FKM rubber strap. ZRC describes it as a strap inspired by the design of the metal bracelet, compatible with a steel pin buckle, highly comfortable and available in several colours. This use of FKM is coherent with the diving vocation of the watch: it brings flexibility, resistance and comfort in sporty or aquatic use while also reinforcing the more contemporary character of this Rubber version.
Water resistance and everyday use
The ZRC Grands Fonds MN64 Heterium Rubber stands out through a particularly impressive level of water resistance. The brand states water resistance guaranteed to 1000 metres and tested to 1500 metres, clearly placing it in the category of serious dive watches. This technical capability, combined with the monobloc construction, secured crown and ECS&reg; bezel, gives the model strong credibility within the world of tool watches. Yet despite this radical nature, its gradient dial and FKM strap also allow it to remain wearable in broader everyday use.
<h3>ZRC Grands Fonds MN64 Heterium Rubber: a dive watch French in spirit, robust and uncompromising</h3>
With the MN64 Heterium Rubber, ZRC offers a dive watch that fully embraces its functional logic. The monobloc case, the crown at 6 o&rsquo;clock, the ECS&reg; system, the extreme water resistance, the Sellita SW300-1 Elabor&eacute; and the FKM strap all come together in a highly coherent whole. This watch will appeal to enthusiasts looking for a true characterful diver that is technically credible, visually strong and faithful to a tradition of engineering-led watchmaking built around real use.
<h3>Conclusion</h3>
The ZRC Grands Fonds MN64 Heterium Rubber is aimed at enthusiasts looking for a dive watch that is robust, original and technically very complete. Thanks to its unique functional architecture, its impressive water resistance, its proven Swiss movement and its FKM strap, it offers a particularly coherent reading of the contemporary professional diver.
Dialicious owner reviews are a relevant way to choose the watch that truly suits you.
(Updated May 2026)

Exact reference for those in the know: ZRC 1904 1964 Spirit GF41218. I find this "new" version of the Spirit more accomplished, recovering the logo with its inverted triangle, gaining a needle with a red finish at the tip, a particularly reflective ceramic bezel. I did not make the (deliberate) choice of steel on the bracelet although the versions dedicated to the 40-41mm models are from my point of view qualitative than the recent steel bracelets dedicated to the so-called "38" models (actually 39mm in diameter). This one is given for 41.5 but my caliper remains on 40.7 approximately... a matter of mm more or less... No matter, heavy case with its anti-magnetic back comfort on the wrist. This model exists with and without date. Aesthetically, the window being quite small and not overlooked by a bubble on the Sapphire, it is discreet. Spirit obliges, these colors are subtly patinated just like the falsely white indexes, the lume is always effective after exposure. Like all ZRCs with the crown at 6 o'clock I find the winding tedious with always the fear of slightly twisting the stem. So you have to be a little careful. Nothing bad. Delivered for my part with a "2-part Nato" with scratches, I preferred a Kundu leather coming from a craftsman that collectors like me appreciate (Xamlam to pay tribute to him) which reinforces this vintage, dated side. Naturally to be avoided for diving. I find this model a real success, meeting precise specifications, a dial ultimately more lively than its elder, materials reflecting light, a real presence on the wrist (a little heavy even on steel). My only regret, a movement with 38-40 hours of reserve which is not in-house (at least it is reliable and easy to repair in case). We would like (I would like) a movement with a more substantial autonomy (60-72 hours for example). This watch remains very endearing, with a history and a large community that give it an extra soul!

Second edition of the Spirit - a success!

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)

marc.coulon's review on his ZRC Grands Fonds Spirit 1964

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