This is the Aquatimer Automatic, by International Watch Company Schaffhausen. Its a vintage remake of the first 1967 Aquatimer series dive watch. It’s a mechanical wind up (featuring the amazing 80000 Calibre Pellaton Windup system), with a 44 hour power reserve, and water resistant to 12 bar (120m). It’s sleek black rubber band and see through black backing makes the watch dapper enough for a night out, but rugged enough for the days when you head out camping.