Oyster Constant Motion Cosmometer Ditton Gold Steel Watch with Black Dial and Oyster Straps, 18CT Gold Ring with Tachometer engraved.
This timepiece is a timing tool specially designed for endurance racers.More than 50 years after the birth of cosmic meter Ditong wrist watch, it still occupies an important position in the field of sports chronograph wrist watch, and continues to develop and evolve.
- Helium escape valve
- Screw‑in crown
- Small seconds
- Transparent case bac
- Unidirectional rotating bezel
- MODEL CASE: Oyster, 40 mm
- Bracelet: Flexible metal blades overmoulded with high-performance elastomer
- CLASP:Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
- Case: 18 ct yellow gold
- Case diameter: 40 mm
- MOVEMENT:Perpetual, mechanical chronograph, self-winding
- Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
- WINDING CROWN:Screw-down, Triplock triple waterproofness system
- Water resistance: Waterproof to 100 metres / 330 feet
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