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Reference
52509
Model case
39 mm, 18 ct white gold, polished finish
Water-resistance
Waterproof to 50 metres / 165 feet
Bezel
Domed and fluted
Dial
Intense black
Bracelet
Leather strap
Movement
Perpetual, mechanical, self-winding
Calibre
7140, manufacture Rolex
Power reserve
Approximately 66 hours
Certification
Superlative Chronometer (COSC + Rolex certification after casing)