This is a rare vintage military stopwatch manufactured by Seikosha.

The back of the stopwatch is engraved with the Japanese inscription “照準具用 陸軍航空部”, indicating that it was intended for use with aiming equipment by the Japanese Army Air corps.

The khaki-colored cord is also believed to be original to the period, adding to the authenticity and historical appeal of this piece.

The stopwatch has been tested and is currently functioning.

A rare and interesting piece of Japanese military history, ideal for collectors of vintage military equipment, Seikosha watches, and historical Japanese items.