Why this one
The case for this one.
- 43mm Oystersteel case rated to 1,220 metres with a helium escape valve
- Cerachrom bezel insert in black ceramic with platinum coated markings
- Calibre 3235 movement, Superlative Chronometer certified, 70 hour power reserve
The Sea-Dweller was developed for saturation divers working the offshore oil fields, engineered with a helium escape valve to survive decompression that would crack an ordinary dive watch. This reference keeps that professional pedigree in a case built for serious wear, bought today as much for the story as the depth rating.