Vintage Watches Collection : 1956 Omega Chrono Tachymeter ref. 2276-1 cal. 320, 32.3mm. case. The caliber 320…

Vintage Watches Collection :

Illustration

Description

1956 Omega Chrono Tachymeter ref. 2276-1 cal. 320, 32.3mm. case. The caliber 320 is basically a cal. 321 (Moonwatch) without the 12 hour counter. A tachymeter scale measures how fast an object is moving. The scale can be found either on the dial or in the