Master Ultra Thin Moon 36 Stainless Steel / Silver / Alligator

In Context

At 36 mm it is classically proportioned: the size a dress watch was understood to be for most of the twentieth century, and small enough to sit under a cuff. At 9.4 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 winds itself from the motion of your wrist. 70 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.

124842J stands on its own in this catalogue — no other reference here shares its base number. It pairs a silver sunburst dial with a stainless steel case. Introduced in 2021.

Self-winding movement with central seconds, moon phase indicator, and date. Total of 245 components including 30 jewelers. Height 4.90mm.

14 other watches in the library run the Jaeger-LeCoultre 925AA.

Jaeger-LeCoultre

Master Ultra Thin Moon Pink Gold - Diamond / Eggshell / Alligator

1362502 · 39 mm

Jaeger-LeCoultre

Master Ultra Thin Moon 36 Pink Gold - Diamond / Silver / Alligator

Q124250J · 36 mm

Jaeger-LeCoultre

Master Ultra Thin Moon 36 Pink Gold - Diamond / Silver / Alligator

1242501 · 36 mm

Jaeger-LeCoultre

Master Ultra Thin Moon 36 Pink Gold - Diamond / Silver / Alligator

Q1242502 · 36 mm