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)