Vacheron Constantin Opens Up Caliber 2755 for a Singular Les Cabinotiers Creation

Vacheron Constantin’s Les Cabinotiers workshop has a particular talent for making complexity feel composed.

With the Les Cabinotiers Minute Repeater Tourbillon Skeleton, the Geneva manufacture turns one of its great modern calibers into an architectural display, stripping away the dial and opening the movement until the watch becomes as much sculpture as instrument.

It’s a one-of-a-kind piece built around Caliber 2755 TMR SQ, a manual-wind minute repeater tourbillon movement that puts traditional high watchmaking under a very bright light.

At a glance

A skeletonized stage for Caliber 2755

Caliber 2755 has been part of Vacheron Constantin’s high-complication vocabulary since 2007, when it began appearing in major Traditionnelle references.

Here, it returns in a far more exposed form as Caliber 2755 TMR SQ, with the dial removed and the bridges and mainplate opened to reveal the movement’s layered construction.

The mainplate has been reduced in volume by 40 percent, a meaningful figure in a watch where every cut has to preserve strength, stability and acoustic performance.

The result is not a simple open dial treatment, but a full skeletonized composition where the mechanics become the visual identity of the watch.

Vacheron Constantin has leaned into curved, arabesque-like forms across the movement, giving the openworked architecture a decorative rhythm rather than a purely technical look.

Minute repeater and tourbillon in plain sight

The watch brings together two of classical watchmaking’s most demanding complications.

Its minute repeater sounds the hours, quarters and minutes on demand, turning timekeeping into a mechanical sequence of notes rather than a glance at hands alone.

At 6 o’clock, the tourbillon completes one rotation every minute, with its carriage decorated with the Maltese cross.

That placement gives the watch a strong visual anchor, especially because the absence of a dial allows the eye to move from the regulating organ through the open bridges and toward the chiming mechanism.

The movement beats at 18,000 vibrations per hour and offers a 58-hour power reserve, a notably practical reserve for a manually wound grand complication.

Finishing that has nowhere to hide

Skeletonization is often described as removing material, but in haute horlogerie it usually adds work.

Every newly exposed edge has to be shaped, finished and visually resolved, especially on a movement with 473 components.

Vacheron Constantin’s finishing on the Caliber 2755 TMR SQ includes drawing, straightening, beveling, rounding-off and sandblasting, all applied to components that can be inspected through the front of the watch.

That matters because an openworked watch leaves little room for compromise.

Surfaces that might be hidden in a conventional movement become part of the composition, and the quality of the hand-finishing is central to the experience.

The watch is certified with the Poinçon de Genève, issued by the Timelab Foundation, underscoring the attention given to construction, assembly, finishing and accuracy.

Rose gold case and restrained proportions

Despite the density of the movement, the case remains relatively elegant in profile.

The rose gold case measures 45 mm in diameter and 12 mm thick, giving the complication enough presence without turning the watch into an unwieldy object.

That balance is important for Les Cabinotiers, where technical rarity is usually paired with the sort of discretion expected from Vacheron Constantin.

The warm tone of the rose gold also softens the complexity of the skeletonized movement, making the watch feel ornate without becoming heavy-handed.

For collectors, the appeal sits in the combination of a historically important Vacheron Constantin caliber, a unique execution and a level of finishing that rewards close inspection.

Details & Specifications

The Les Cabinotiers Minute Repeater Tourbillon Skeleton is the kind of watch that makes its argument quietly but thoroughly.

It doesn’t rely on novelty for its own sake, instead using openness, sound and hand-finishing to show why Vacheron Constantin remains one of the defining names in complicated Geneva watchmaking.