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