Vintage Heuer military rare WWII Wehrmacht 62mm stopwatch #1

A vintage Heuer stopwatch used by German Army during WWII. Absolutely rare. The first one and the only one I ever seen. The stopwatch is heavy and massive. Two pushers. Probably the only one in the world. Condition is perfect.

Ref. number unknown
Diameter: 62mm
Year of production: 1939-1941