Vintage Heuer Ref.540 Dec. GPO 51mm stopwatch #1

A vintage Heuer stopwatch. Made for GPO (General Post Office). Very rare. Perfect condition.

1/100 th of minute (decimal) recorder, 0-30 min. register, permanent motion, 15 jewels, split action.

Ref.540 Dec.
Diameter: 51mm
Year of production: 1953