Duomètre à Quantième Lunaire 40.5 White Gold / Open

In Context

At 40.5 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 13.5 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. 50 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.

6043420 stands on its own in this catalogue — no other reference here shares its base number. It pairs a silver dial with a white gold case.

Caliber 381 is built upon the 'Dual-Wing’ concept, featuring two independent power reserves, one of which, in this case, is devoted solely to precise time measurement while the other takes care of the functional displays.

9 other watches in the library run the Jaeger-LeCoultre 381.

Jaeger-LeCoultre

Duomètre à Quantième Lunaire 40.5 White Gold Enamel

60435E1 · 40.5 mm

Jaeger-LeCoultre

Duomètre Quantième Lunaire Pink Gold / Silver / Alligator

6042421 · 40.5 mm

Jaeger-LeCoultre

Duomètre à Quantième Lunaire Pink Gold / Grey

604244J · 42 mm

Jaeger-LeCoultre

Duomètre à Quantième Lunaire Pink Gold Open

6042522 · 42 mm