THE COLLECTION TODAY
Wednesday
Tuesday
A. LANGE B-UHR 1940 CAL. 48/1
- A. Lange & Söhne
- Laco (Lacher & Co)
- Stowa (Walter Storz)
- Wempe (Chronometerwerke Hamburg)
- IWC
- Lange & Söhne: cal. 48/1
- (due to limited capacities watches have been assembled by Huber/Munich, Felsing/Berlin, Schieron/Stuttgart, Schätzle & Tschudin/Pforzheim, Wempe/Hamburg).
- Laco: Durowe cal. D 5
- Stowa: Unitas cal. 2812
- Wempe: Thommen cal. 31
- IWC: cal. 52 SC (SC= „seconde central")
The specifications of these watches had been defined by the „Reichsluftfahrtministerium“ (RLM) – Imperial Air Ministry.
Due to those specifications all B-uhren had the following features in common:
Due to those specifications all B-uhren had the following features in common:
- A case diameter of 55 mm
- Marked on the back with FL 23883 (FL = flight, 23 = navigation)
- Equipped with large crowns in order to be used with gloves
- Hacking movement (the second hand stops when pulling out the crown / essential for a precise time setting)
- Breguet balance spring
- Regulated and tested as chronometers
- Long leather strap (to be worn on the sleeve of a flight jacket).
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