The triumph of endurance

The Oyster Perpetual Cosmograph Daytona in Oystersteel with a black dial and contrasting counter rings. It features an Oyster bracelet and a black Cerachrom bezel with tachymetric scale.

Cosmograph Daytona technical details

Reference 126500LN

Model case

Oyster, 40 mm, Oystersteel

Oyster architecture

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

Diameter

40 mm

Material

Oystersteel

Bezel

Black monobloc Cerachrom bezel in ceramic with moulded tachymetric scale

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

Oystersteel

Clasp

Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link

Dial

Black, steel counter rings

Details

Highly legible Chromalight display with long-lasting blue luminescence