Patrimony Retrograde Day-Date Platinum / Salmon

In Context

At 42.5 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 9.7 mm thick it is about average for a modern wristwatch. The case back is open, so the movement is visible without taking the watch apart, and the sapphire crystal will resist everything short of deliberate abuse. Rated to 30 m, it is protected against rain and splashes and nothing beyond that.

The movement winds itself from the motion of your wrist. 40 hours of reserve carries it overnight, but not through a weekend in a drawer. At 28,800 vph the seconds hand advances 8 times a second.

4000U/000P-H003 stands on its own in this catalogue — no other reference here shares its base number. It pairs a salmon sunburst dial with a platinum case. Beyond the time it carries a day-date.

Minutes, retrograde hand-type day of the week, stop seconds device, retrograde hand-type date, Hours The Patrimony retrograde day-date is driven by in-house self-winding calibre 2460 R31R7/3 operating at a rate of 28,800 vibrations per hour. It is fitted with a 22K gold openworked oscillating weight with a design inspired by the Maltese cross emblem and has an approximately 40-hour power reserve. In the grand tradition of in-house calibres, the bridges are finished with hand-polished angles. Straight-graining, which consists of perfectly smoothing the component flanks, is also performed by hand, while the screws are meticulously polished. The mainplate is circular-grained on both sides, while the bridges are adorned on the back with the Côtes de Genève motif.