Avoirdupois watches: history, models and owner reviews

Avoirdupois, founded in 2017 in New York by American designer and engineer James Stumpf, is a design and manufacturing company whose arrival in mechanical watchmaking represents one of the most unusual recent American horological initiatives. Before creating watches, Avoirdupois became known for furniture and lighting designed, engineered and manufactured in its own Manhattan workshops. This culture of industrial design, machining and vertically integrated production was later transferred to watchmaking through Force Majeure, a project developed over several years around an especially ambitious objective: reconsidering the conventional construction of a mechanical watch rather than reproducing standard Swiss-industry solutions. A monobloc case, case-integrated clasp, unusual crown interface, tool-free adjustable bracelet and automatic calibre developed in Manhattan form the first elements of a watchmaking language that remains extremely young but is already highly distinctive.

From a New York design studio to a watch manufacture

Avoirdupois did not begin as a watch microbrand seeking an existing movement, external case supplier and assembly partner. James Stumpf first established a design and manufacturing organisation dedicated to objects, furniture and lighting. His approach deliberately combines the sensitivity of a designer with the logic of an engineer. In his early work, he did not simply seek to draw a chair, table or lamp, but to understand how each component could be manufactured, assembled, repaired and used over a long period.

The Avoirdupois name already reflects this philosophy. Historically, the term belongs to the Anglo-American system of weights and measures and derives from an Old French expression associated with goods sold by weight. James Stumpf also uses the concept of “objects of weight”, meaning objects carrying both material and symbolic significance. His intention is to create products sufficiently substantial and durable to outlive passing trends. That pursuit of permanence was visible in the company’s furniture before being transferred to the mechanical watch, an object theoretically capable of surviving several generations when properly designed and maintained.

The early furniture collections already reveal a fascination with proportion, mid-twentieth-century forms, visible mechanical structures and unconventional manufacturing solutions. James Stumpf develops his own components whenever he believes commercially available parts prevent the desired result. This working method matters greatly when considering the watch project. Once horological development begins, the process focuses less on combining available components than on questioning every part of the construction, even when conventional watchmaking has used a particular solution for decades.

The Manhattan facility gradually develops the ability to handle a broad range of materials and processes. Computer numerical control machining, turning, precision grinding, electrical discharge machining, coordinate measurement, optical inspection, finishing and assembly are among the operations the company says it brings together internally. The infrastructure was established for its design and furniture activities but becomes the industrial starting point for the watchmaking project. In an industry where young brands frequently outsource nearly all production, this background makes Avoirdupois particularly unusual.

The horological project nevertheless requires several years of development. The company explains that it spent approximately five years studying conventional methods used to construct contemporary mechanical watches. James Stumpf’s reasoning is that certain fundamental engineering principles have changed relatively little since the middle of the twentieth century or even earlier. The objective is therefore not to create a deliberately eccentric watch, but to ask for every component whether the traditional solution remains genuinely rational. This approach leads to Force Majeure.

The project became public before significant customer deliveries began. Force Majeure appeared in specialist media from the early 2020s, but for a considerable period most publicly available imagery consisted primarily of digital renderings and prototype presentations. This chronology matters: Avoirdupois has existed since 2017 as a design studio and manufacturing company, but its experience as a maker of watches delivered to owners is considerably more recent. The age of the company should therefore not be confused with the age of its commercial watchmaking activity.

By 2026, Avoirdupois had reoriented its website around what it calls the American Watch Collection. Furniture that helped establish its reputation remains visible in the design archive, but watches now occupy centre stage. The company is based in Manhattan and strongly emphasises its American origin. This location is exceptional within contemporary mechanical watchmaking because manufacturing a complete complex mechanical wristwatch in the heart of New York is precisely one of the challenges Avoirdupois places at the centre of its identity.

Force Majeure and the reconsideration of conventional watch construction

Force Majeure is Avoirdupois’s first true watchmaking proposition and concentrates almost every idea developed during the company’s years of research. Visually, it belongs to the broad category of integrated-bracelet sports watches, but its principal interest is not merely its styling. Case, bracelet, clasp, crown and movement were conceived as an interconnected mechanical system whose different functions strongly influence one another, rather than as a collection of conventional components.

Avoirdupois Force Majeure 150 uses a steel case whose width is presented by the brand in imperial units: 1.50 inches, a little over 38 millimetres. Stated thickness is just 0.24 inches, approximately 6 millimetres, with an overall length close to 48 millimetres. These proportions are particularly ambitious for an automatic watch with an integrated bracelet. Communicating primarily in inches and feet intentionally reinforces the American character of the project even in the way technical specifications are presented.

The case uses a monobloc construction. Avoirdupois explains that the middle case and bezel are integrated within a single structure while eliminating a conventional separate caseback. Sapphire crystals nevertheless close the watch on both sides. According to the company, this architecture reduces the number of potential points through which water can enter compared with conventional construction. Stated water resistance remains relatively modest at 150 feet, approximately 50 metres. This demonstrates that reducing case openings is primarily about rationalising construction rather than turning Force Majeure into a true diving watch.

Thinness is equally important. An integrated-bracelet sports watch can quickly become visually massive as case middle, caseback, bezel and clasp accumulate. Avoirdupois instead attempts to reduce this stacking. Surfaces are primarily grained or brushed with selected polished bevels, creating a strongly industrial aesthetic. The rounded-square case and large circular bezel give a personality closer to industrial design than conventional dress-watch codes, consistent with the company’s background in furniture and object design.

The clasp is probably the most immediately unusual visual innovation. Instead of placing a deployant system in the centre of the bracelet under the wrist, Avoirdupois integrates a wishbone-shaped mechanism directly beneath the watch head. Both sides of the bracelet can be opened independently. When closed, the bracelet therefore maintains almost complete continuity around the wrist. The construction allows a mechanical mass normally located beneath the wrist to be transferred toward the watch itself, fundamentally changing the conventional integrated-bracelet experience.

The choice nevertheless has consequences that can only be evaluated through actual ownership. The integrated mechanism adds components beneath the case, and real comfort will depend on the way the system sits across very different wrists. Technical documents state substantial mechanical strength, but a brand profile should not transform specifications into proven long-term performance. With a watch this new, comfort, ageing of the locking mechanism and ease of maintenance will need to be confirmed by owners over several years.

The bracelet also uses a Snap-Link system designed to allow links to be added or removed without tools. A half-link is provided to refine sizing. Again, the objective is ergonomic rather than decorative: owners should not necessarily need to visit a retailer or use bracelet tools to adjust the watch. This independence fits neatly with the philosophy of an industrial object conceived as a complete system, in which design relates as much to use as to appearance.

The Pump-Action crown represents a third unconventional element. It does not operate exactly like a conventional crown continuously rotated for winding and setting. According to Avoirdupois documentation, it is first unlocked by pulling and then uses a pumping action in different orientations to control winding or movement of the hands. The principle may seem unfamiliar on paper, but demonstrates an almost obsessive willingness to reconsider even the most established interfaces of the mechanical wristwatch.

AVDP.130.LB, micro-rotor and claimed Manhattan manufacture

The movement is the most ambitious part of Force Majeure. Avoirdupois states that the automatic AVDP.130.LB calibre was developed and manufactured entirely within its Manhattan facility. Specialist publications presenting the project report that the American manufacturing ambition extends to the hairspring. If this level of industrialisation proves sustainable across the announced production volumes, it represents a particularly rare achievement in contemporary American watchmaking, where even ambitious brands often rely on externally sourced specialist components.

The calibre operates at 17,280 vibrations per hour, or 2.4 hertz, an unusual frequency today. It offers approximately sixty hours of power reserve and uses a 22-carat gold rotor. The automatic architecture uses a micro-rotor to help limit movement thickness and therefore overall case height. This pursuit of thinness demonstrates that the calibre and external design were developed as two parts of the same engineering problem, rather than selecting an existing movement first and drawing a case around it afterward.

Avoirdupois places particular emphasis on the low component count: forty-seven parts excluding thirty-nine jewels. The company treats simplicity almost as a complication of its own and says it attempted to reduce the number of components to improve manufacturing, durability and serviceability. Ten construction, durability and manufacturability innovations are described as patent-pending. The strategy is noteworthy because it reverses the conventional haute horlogerie logic in which sophistication is frequently demonstrated by increasing the number of components.

One of the concepts identified by the company is the Orbital Barrel System. Public information remains too limited, however, to describe confidently its entire operation and benefits without merely repeating the brand’s claims. The same caution applies to the ten patent applications: filing a patent application does not itself prove a definitive technical advantage. What can be stated confidently is Avoirdupois’s documented intention to create a different movement architecture rather than use an existing calibre.

The standard movement has a relatively industrial aesthetic. Its mainplate is steel and the 22-carat gold rotor provides the principal visual contrast. The design favours broad architectural surfaces rather than an accumulation of traditional striping, perlage or engraving. This treatment fits the product because Avoirdupois does not attempt to imitate the decorative codes of Geneva or Glashütte. It seeks instead to create an appearance derived from its own American industrial-design culture.

Avoirdupois Force Majeure 150R adds a higher level of precious material and finishing. Its AVDP.130.LB(R) movement uses an 18-carat gold mainplate alongside the 22-carat gold rotor, and the company states that internal finishing is performed by hand. The dial adopts a gold-toned fumé treatment. Production is limited to seventy-five pieces compared with 550 for the standard black version. This variation demonstrates how the same industrial architecture can form the foundation for a more luxurious execution, without changing the watch’s fundamental concept.

Sapphire-crystal manufacturing is also presented as highly integrated. Avoirdupois states that it uses sapphire boules grown in the United States and then performs coring, cylindrical grinding, wafering, planetary grinding, lapping, polishing and inspection internally. This level of manufacturing detail is unusual in watch-brand communication. It reveals an obsession with supply chain and component origin, entirely consistent with the manufacture’s American industrial project.

This integration nevertheless deserves a nuanced reading. A company can manufacture many components internally while necessarily depending on suppliers for raw materials, machine tools, tooling and specialised processes. The concept of a fully Manhattan-made watch should therefore be understood as a manufacturing claim supported by several specialist presentations, but its deeper significance lies in the unusually high degree of local production pursued by such a young company, rather than in a semantic competition over the origin of every gram of material.

Force Majeure 150, 150R and Practitioner: a catalogue still being built

The Avoirdupois catalogue remains extremely small. This is logical for a company that has only recently industrialised its first movement. It also means the brand has not yet accumulated the product experience of a manufacture offering several generations of movements and cases. In October 2026, the Avoirdupois watch universe still rests essentially on one architecture and its first variations, with Practitioner expected to extend the concept.

• Avoirdupois Force Majeure 150 — the company’s first mechanical watch, with steel monobloc case, vertically grained black dial, integrated bracelet and AVDP.130.LB automatic calibre manufactured in Manhattan according to the brand.
• Avoirdupois Force Majeure 150R — a more exclusive seventy-five-piece version with gold fumé dial, 18-carat gold movement mainplate, 22-carat gold rotor and hand-finished internal components.
• Avoirdupois Practitioner 150 — the next collection reference, announced as introducing “a new type of complication” in 2026, with insufficient public technical information at present to describe its mechanism accurately.

Avoirdupois Force Majeure 150 is the fundamental reference because it allows the concept to be evaluated without the precious-material layer of the R version. Its announced price of 12,950 dollars places it in a highly competitive segment. At that level, buyers can choose watches from established Swiss or Japanese manufactures, sometimes with worldwide service networks and decades of history. Avoirdupois answers with a degree of mechanical originality and provenance that are extremely difficult to find elsewhere at the same price, but with considerably less historical evidence.

Avoirdupois Force Majeure 150R raises the announced price to 24,950 dollars. The difference rests primarily on its seventy-five-piece limitation, gold mainplate, internal hand finishing and alternative dial and component treatment. It therefore speaks less to someone simply wanting to experience the Force Majeure architecture than to the collector attracted by the first precious expression of an entirely new American movement. Its future significance will depend heavily on the long-term trajectory of the manufacture itself.

Avoirdupois Practitioner 150 is considerably more mysterious. At the time of this update, the official website shows only reference 50955 and announces “a new type of complication coming 2026”, together with a waiting list. It would therefore be premature to attribute a particular function, calibre or price to the model. Such restraint matters because the announcement of a novelty should not be converted into specifications that do not yet exist publicly. Practitioner nevertheless indicates that Avoirdupois intends quickly to move beyond simple hours-and-minutes watches.

Force Majeure production itself is also still in the launch phase. The official site states that deliveries will begin no earlier than September 2026 and will proceed according to limitation numbers. This means that in October 2026, even if the earliest watches are starting to reach owners, there is not yet several years of collective experience with which to judge the reliability of the calibre, clasp or crown seriously. That youth needs to form part of any purchasing decision.

The commercial model is unusual as well. The company requests full payment by credit card or a very substantial deposit for payments by wire transfer or cheque. Direct shipping is officially restricted to the United States; international clients must arrange collection and transportation from the manufacture themselves. This reinforces the still heavily American and relatively artisanal nature of distribution, but can significantly complicate purchasing for European or Asian collectors.

The standard warranty is stated as three years and can, under certain conditions, be extended by another five years. The basic warranty can transfer to a subsequent owner after the watch is re-registered, a useful provision for a young product that may change hands. The more important long-term issue, however, will be the manufacture’s ability to preserve the skills, parts and specialised tooling required for decades, a fundamental question for any proprietary calibre produced in small quantities.

A new proposition for American watchmaking

Avoirdupois enters the market at a time of renewed interest in American watchmaking. The United States historically possessed an enormous watch industry through Waltham, Elgin, Hamilton, Howard and many other manufacturers. The disappearance or transformation of those structures during the twentieth century left a landscape in which many contemporary American brands design watches domestically but rely on foreign movements and components. Avoirdupois is attempting to rebuild a much deeper mechanical manufacturing capability on American soil.

This ambition connects it conceptually with a small number of very different independent companies reinvesting in domestic production. Avoirdupois is nevertheless distinguished by its origins outside conventional watchmaking. James Stumpf comes from furniture design and object engineering. He therefore does not necessarily attempt to recreate a historical American watch. His approach instead consists of applying the methods of an industrial designer encountering the wristwatch with relatively fresh eyes, even when that means questioning solutions the watch industry has long accepted.

This absence of tradition can be a strength. A Swiss manufacture with generations of history normally needs to respect an established aesthetic, brand codes and architectures associated with its heritage. Avoirdupois has none of those constraints. It can place the clasp beneath the case, replace the conventional crown, use a 2.4-hertz frequency or reorganise automatic winding without explaining why the result does not resemble a 1955 reference. This freedom gives genuine intellectual freshness to the project.

It also creates risk. Certain traditional solutions survive because millions of watches and decades of ownership have demonstrated their effectiveness. Reinventing a clasp or crown means having to prove that the new architecture will age at least as well. The difference between an elegant engineering drawing and a good watch worn for twenty years can only be measured over time. For Avoirdupois, the next few years will therefore matter as much as the five years of initial development, because real-world use will test the engineering assumptions.

The design itself is also likely to polarise opinion. The integrated bracelet, screw-like markers, heavily grained surfaces and geometric forms are far removed from traditional luxury-watch codes. Some collectors will see an object fully coherent with the studio’s modernist and industrial furniture; others may find the design overly conceptual. Such polarisation is probably preferable to indifference for a new brand. Avoirdupois already has a visual language strong enough not to be mistaken for another generic Swiss-inspired sports watch.

The absence of luminous material on the Force Majeure hands and markers is one example of an aesthetic decision with practical consequences. The watch has a clean architectural appearance but naturally cannot offer the same low-light readability as a sports watch designed for nighttime activity. Likewise, fifty metres of water resistance is sufficient for normal daily use but does not give the watch a particular aquatic vocation. Despite its steel bracelet, Force Majeure is closer to an industrial-design watch than a genuine tool watch.

The extremely low thickness could, however, become one of the watch’s strongest wearing advantages. An automatic sports watch approximately six millimetres thick can fit beneath a cuff considerably more easily than many competitors. The integrated bracelet and clasp transferred toward the watch head may also produce a very different sensation. But once again, a specification sheet cannot determine comfort on its own. Real weight distribution and the behaviour of the clasp need to be confirmed by owners.

For a European collector, purchasing also requires unusual involvement. International shipping must be arranged independently, import taxes and procedures need to be managed, and major servicing may require returning the watch to Manhattan. This paradoxically reinforces the character of the object: an Avoirdupois is not yet a watch available from hundreds of boutiques. But logistical rarity should be distinguished from horological rarity. Difficulty of access is not itself a quality of the product, even if it contributes to the experience of dealing with an emerging manufacture.

Within a collection, Avoirdupois can therefore occupy a genuinely unusual position. It offers neither the heritage of a century-old house nor the traditional decorative finishing of a Swiss artisan. It proposes something else: a contemporary attempt to rebuild American mechanical watchmaking capability from a New York industrial-design workshop. For some enthusiasts, the experimental and almost pioneering nature of the project will be precisely its strongest attraction. For others, waiting for several years of owner experience will be an entirely rational decision.

Conclusion

Avoirdupois is aimed at collectors attracted to new watchmaking projects, industrial engineering and the revival of genuinely ambitious American mechanical manufacturing. Its strength lies in an unusual approach: rather than reproducing an existing recipe, James Stumpf and his team reconsidered the case, bracelet, clasp, crown and movement in an attempt to create one coherent system manufactured in Manhattan. That originality nevertheless comes with a major unknown: commercial watch production has only just begun, and time will be required to determine how these solutions genuinely age. Service quality, durability of the proprietary components, clasp comfort and calibre reliability cannot yet benefit from the historical evidence available from an established manufacture.

In this particular context, Dialicious customer reviews will be especially valuable in confronting technical promises with the actual experience of the earliest owners and in following the way this young American manufacture gradually builds its credibility.

(Updated October 2026)