Master Geographic Stainless Steel / Silver / Alligator

In Context

At 39 mm it sits just under the modern norm — the band that suits the widest spread of wrists. 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. 43 hours of reserve carries it overnight, but not through a weekend in a drawer. At 28,800 vph the seconds hand advances 8 times a second.

1428421 stands on its own in this catalogue — no other reference here shares its base number. It pairs a silver dial with a stainless steel case.

Mechanical automatic winding movement, 310 parts, 28,800 vibrations per hour, 43-hour power-reserve. Funcations: main time zone: hour, minute, central seconds, date, power-reserve, day/night indication. Second time zone: hour, minute, 24-city disc specifying summer time, 24-hour indication.

2 other watches in the library run the Jaeger-LeCoultre 939A/1.

Jaeger-LeCoultre

Master Geographic Pink Gold / Silver / Alligator

1422521 · 39 mm

Jaeger-LeCoultre

Master Geographic Stainless Steel / Silver / Bracelet

1428121 · 39 mm