Master Grande Tradition Tourbillon à Quantième Perpétuel

In Context

At 43 mm it is a large watch — well above this catalogue’s 40 mm median, and enough to dominate a narrow wrist. At 13 mm it is a tall case, and it will catch on a cuff. 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. 50 m covers rain and hand-washing comfortably; it is not a watch to swim in.

The movement winds itself from the motion of your wrist. 48 hours of reserve is enough to set it down on Friday evening and find it still running on Monday. At 28,800 vph the seconds hand advances 8 times a second.

500242A stands on its own in this catalogue — no other reference here shares its base number. It pairs a silver matte dial with a pink gold case. Beyond the time it carries a tourbillon.

Automatic movement with tourbillon escapement and perpetual calendar. Number of pieces : 401 Vibrations per hour : 28800 Power-reserve : 48 Hours Jewels : 47 Barrel : 1 Height : 8.15 mm