Master Grande Tradition Tourbillon Céleste Mother-of-Pearl Aventurine

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 13.2 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 is hand-wound, so winding it becomes part of the day rather than something the watch does for you. 48 hours of reserve is enough to set it down on Friday evening and find it still running on Monday. At 21,600 vph the seconds hand advances 6 times a second, the slower and more audible rate of an older design.

5073403 stands on its own in this catalogue — no other reference here shares its base number. It pairs a blue dial with a white gold case. Introduced in 2016. Beyond the time it carries a tourbillon.

Mechanical manually-wound movement, 334 parts, 28,800 vibrations per hour, 48-hour power-reserve; indications for hour, minute, flying tourbillon, celestial map, signs of the zodiac, month, 24-hour indication..

3 other watches in the library run the Jaeger-LeCoultre 946.

Jaeger-LeCoultre

Master Grande Tradition Tourbillon Céleste Diamond

5073402 · 42 mm

Jaeger-LeCoultre

Master Grande Tradition Tourbillon Céleste White Gold / Blue

Q5273480 · 43 mm

Jaeger-LeCoultre

Master Grande Tradition Tourbillon Céleste Diamond Sky Chart

5073401 · 42 mm