Reference

126509

Model case

Oyster, 40 mm, white gold

Water-resistance

Waterproof to 100 metres / 330 feet

Bezel

Fixed, with engraved tachymetric scale, in 18 ct white gold

Dial

Bright black and steel

Bracelet

Oyster, three-piece solid links

Movement

Perpetual, mechanical chronograph, self-winding

Calibre

4131, manufacture Rolex

Power reserve

Approximately 72 hours

Certification

Superlative Chronometer (COSC + Rolex certification after casing)