Zenith Unveils the DEFY Chronograph USM TimeForArt Unique Piece: A Mirror-Polished One-Off for Charity

Mirrors have a way of refusing to sit still. Tilt one toward a window and it fills with sky; turn it toward a room and it takes in the furniture, the light, and whoever happens to be standing there. That restlessness is the whole idea behind Zenith’s DEFY Chronograph USM – TimeForArt Unique Piece, a one-off chronograph with a fully mirror-polished dial, created with USM Modular Furniture for the TimeForArt benefit auction.

For a partnership barely a year old, this one has surprisingly deep roots. The USM Haller modular system, built around a steel ball joint, was patented in 1965. Four years later, in 1969, Zenith introduced both the original DEFY and the El Primero, its automatic high-frequency chronograph. Two Swiss companies, working in two very different disciplines, hit a creative stride within the same few years: one in design, the other in engineering.

Both houses have longer histories still. Zenith was founded in Le Locle in 1865 and counts itself the first vertically integrated Swiss watch manufacture. USM followed two decades later, in 1885, as a family-run metal workshop in Münsingen, just outside Bern, its name drawn from the initials of founder Ulrich Schärer and the first letter of his hometown, where the factory still resides.

In the early 1960s, third-generation CEO and engineer Paul Schärer commissioned Swiss architect Fritz Haller to design a new factory and office pavilion on a flexible steel modular system, and the two went on to develop furniture to match. Initially intended for USM’s own offices, the system now sits in the permanent Design Collection of the Museum of Modern Art in New York.

That shared creative ground set up the first collaboration, launched in September 2025. The DEFY Chronograph USM reimagined the angular architecture of the 1969 DEFY as a chronograph powered by El Primero, with subtle references to the USM Haller system and a run of colorful dials, bringing watchmaking and modular design into dialogue. For its second outing, made exclusively for TimeForArt, the pairing keeps that formula almost entirely intact and makes one defining change.

Introducing the DEFY Chronograph USM – TimeForArt Unique Piece

The change is the dial. Where the original collection wore colorful dials, the unique piece is fully mirror-polished, so its appearance shifts constantly with its environment. Light, architecture, and movement all become part of the dial, which, in Zenith’s telling, makes for a watch that is never seen in quite the same way twice.

Color hasn’t disappeared so much as concentrated. Against the reflective surface, the three overlapping azuré counters are brought to life by four differently colored prints and hands drawn from USM’s signature palette: USM Golden Yellow, USM Pure Orange, USM Green, and USM Gentian Blue. According to Zenith, it is the first time all four colors have appeared together on a single dial.

Functionally, the dial follows a familiar chronograph script. Hours and minutes are read from the center, with small seconds at 9 o’clock, a 30-minute counter at 3 o’clock, a 12-hour counter at 6 o’clock, and the date at 4:30. Rhodium-plated hour markers and faceted, rhodium-plated hour and minute hands coated with SuperLuminova SLN C1 complete the display, giving the eye a few fixed points on a surface that otherwise never stops changing.

Around it, the essential codes of the DEFY Chronograph USM remain. The compact 37mm stainless-steel case keeps its octagonal geometry and 14-sided bezel, the counters still overlap, and the whole thing sits on the stainless-steel “ladder” bracelet. A screwed-in crown and water resistance of 10 ATM finish the case.

Then there is the detail worth leaning in for. The central chronograph seconds hand is finished in USM Gentian Blue and tipped with a miniature USM Haller ball joint, the same connector on which the entire furniture system is based. It is a small, witty link between a sideboard and a stopwatch, and it makes its point without a word of text on the dial.

Inside is the El Primero 400, Zenith’s automatic high-frequency column-wheel chronograph calibre, beating at 36,000 vibrations per hour (5 Hz) with a 55-hour power reserve. Its escape wheel and lever are made of silicon, and the oscillating weight carries a Côtes de Genève motif along with the ZENITH and USM logos. Its name nods to the 1969 original, which Zenith describes as the world’s first automatic chronograph calibre.

A Sideboard for the Collector

The project extends well beyond the wrist. Accompanying the watch is a one-of-a-kind mirrored USM Haller sideboard, created specifically for the project, with an integrated storage compartment designed to hold up to 24 watches.

Its arrangement suits a collector who likes both to show and to keep. Through the glass top, the first layer of a collection remains on display; below, a lockable compartment opens to reveal a second layer housed in a drawer. Zenith presents it as a functional display for the collector, one that brings USM’s modular design language into the world of watch collecting.

In our view, the mirror is what lifts this beyond a clever colorway. A polished dial on its own could easily read as a gimmick, but here it carries the brief: a watch designed to take in its surroundings, delivered with a mirrored piece of furniture built to hold it, so that the two objects quite literally reflect each other. Gathering all four USM colors onto one dial, rather than spreading them across a range, also gives a one-off watch a genuine reason to be a one-off.

The piece was created for the third edition of TimeForArt, the benefit watch auction organized by Swiss Institute in partnership with Phillips. The 2026 edition brings together 25 participating watch brands, each invited to create a unique timepiece in support of contemporary art.

The DEFY Chronograph USM – TimeForArt Unique Piece, Ref. 03.A780.400-T/01.M3642, accompanied by its USM Haller sideboard, will be auctioned at Phillips New York on December 5, 2026, at 3:00 PM EST. Zenith has not announced an estimate. One hundred percent of the proceeds, including Phillips’ Buyer’s Premium, will benefit Swiss Institute, supporting its exhibitions, public programs, education initiatives, and community engagement.

For a watch built entirely around reflection, it is a fitting arrangement: whoever wins it on December 5 will see a little of themselves in the dial every time they check the time, and Swiss Institute will keep every dollar of the result.

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Adrienne Faurote

Editor in Chief · Haute Time

As a former New Yorker, now a “Miamian,” Adrienne Faurote joined Haute Living in August of 2021. She currently serves as the Haute Media Group Editor-in-Chief, overseeing all editorial platforms within the Haute Media Group while also maintaining her role as Fashion, Jewelry & Watch Director. Prior to her position at Haute Living, Faurote was the Market Editor at Marie Claire Magazine US, amassing over ten years in the industry, becoming an authoritative voice in all things fashion, jewelry, and watches.