: Hi this is an so called observers watch , note the big numbers and the black dial, these watches where used by aviators . So they could see clearly at night the hour and the elapsed flight time with their chronos. The two " 2 " are used to aim the sun in between alliniate the the hands to navigate in case if instruments failed. These watches where mostly used by chech aviators , the movement is I think a venus 140 ,

good luck ,

Americano

: Has anybody an idea?

: Thank's