amanico[JLC Moderator]
400010
An interesting watch: Nivada Grenchen Depthomatic.
The first, as far as I know, diving watch with a mechanical depth gauge, made in 1964. The more famous other one was the Favre Leuba Bathy 50, made in 1966.
The Favre Leuba Bathy 50:
How thrilling are these vintage watches.
Best,
Nicolas