The Jaeger-LeCoultre Master World Geographic (Ref. Q1528420) is a highly functional travel timepiece powered by the in-house automatic JLC Calibre 936. Often referred to by its case back reference 146.8.32.S, it features a complex silvered dial that displays multiple time zones simultaneously through a rotating world city ring.

• Case: 41.5mm stainless steel (often listed as 41mm or 42mm) with a thickness of 12.5mm.

• Movement: JLC Calibre 936 automatic movement with 38 jewels, 322 parts, and a frequency of 28,800 vph.

• Power Reserve: Approximately 42 hours.

• Water Resistance: 50 meters (5 ATM).

• Case Back: Transparent sapphire crystal skeleton back.

• Functions:

  • World Time: Outer revolving ring with 24 world cities adjusted via the crown at 2 o’clock.

  • Dual Time: Independently adjustable second time zone sub-dial at 6 o’clock with an integrated 24-hour day/night indicator.

  • Power Reserve Indicator: Fan-shaped "Réserve de Marche" display at the 10 o'clock position.

  • Date: Analog sub-dial located at 2 o’clock.