Master Grande Tradition Quantième Perpétuel 8 Jours SQ White Gold / Blue

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 11.6 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. 50 m covers rain and hand-washing comfortably; it is not a watch to swim in.

The movement is hand-wound, so winding it becomes part of the day rather than something the watch does for you. 192 hours of reserve puts it well past a weekend — several days off the wrist and it is still going. At 28,800 vph the seconds hand advances 8 times a second.

50635SQ stands on its own in this catalogue — no other reference here shares its base number. It pairs a skeleton matte dial with a white gold case. It was a limited edition. Beyond the time it carries a date.

Hand-wound movement with perpetual calendar; skeletonized; power reserve of 8 days.

1 other watch in the library runs the Jaeger-LeCoultre 876SQ.

Jaeger-LeCoultre

Master Grande Tradition Quantième Perpétuel 8 Jours SQ Green

5063540 · 42 mm