Overseas Perpetual Calendar Boutique

In Context

At 42 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 12.95 mm it is a tall case, and it will catch on a cuff. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse. 150 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

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 21,600 vph the seconds hand advances 6 times a second, the slower and more audible rate of an older design.

49020/000W-9656 stands on its own in this catalogue — no other reference here shares its base number. It pairs a grey dial with a titanium, stainless steel case. It was a limited edition. Beyond the time it carries a perpetual calendar.

Minutes, hand-type month, hand-type day of the week, perpetual calendar, 48-month counter with leap year indication, moon phase, column-wheel chronograph with 12-hour and 30-minute counters, small seconds at 6 o'clock, hand-type date, hours This exceptional movement representing a compendium of technical Haute Horlogerie beats to the rhythm of Calibre 1136 QP and its 228 parts: a mechanical self-winding movement – just as one would expect from a sports watch – oscillating at the rate of 21,600 vibrations per hour and endowed with an approximately 40- hour power reserve. In addition to the hours, minutes and small seconds at 6 o’clock, Calibre 1136 QP powers the chronograph functions – sweep seconds-hand, 30-minute counter at 3 o’clock and 12-hour counter at 9 o’clock – as well as those of the perpetual calendar – day of the week, date, 48-month counter with leap years as well as a moon-phase display.

1 other watch in the library runs the Vacheron Constantin 1136 QP.

Vacheron Constantin

Overseas Perpetual Calendar

49020/000R-9753 · 42 mm