The triumph of endurance

This Oyster Perpetual Cosmograph Daytona in 18 ct white gold, with a bright blue dial and an Oyster bracelet, features an 18 ct white gold bezel with an engraved tachymetric scale.

Cosmograph Daytona

Technical details

Reference 126509

Model case

Oyster, 40 mm, white gold

Oyster architecture

Monobloc middle case, screw-down case back and winding crown

Diameter

40 mm

Material

18 ct white gold

Bezel

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

Winding crown

Screw-down, Triplock triple waterproofness system

Crystal

Scratch-resistant sapphire

Water resistance

Waterproof to 100 metres / 330 feet

Movement

Perpetual, mechanical chronograph, self-winding

Calibre

4131, manufacture Rolex

Precision

-2/+2 sec/day, after casing

Functions

Centre hour and minute hands, small seconds hand at 6 o'clock. Chronograph via centre seconds hand, 30-minute counter at 3 o'clock and 12-hour counter at 9 o'clock. Stop seconds for exact time setting

Oscillator

Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers

Winding

Bidirectional self-winding via Perpetual rotor

Power reserve

Approximately 72 hours

Bracelet

Oyster, three-piece solid links

Material

18 ct white gold

Clasp

Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link

Dial

Bright blue

Details

Highly legible Chromalight display with long-lasting blue luminescence