Model case

Crystal

Scratch-resistant sapphire

Water-resistance

Waterproof to 100 metres / 330 feet

Model case

Oyster, 40 mm, white gold

Bezel

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

Diameter

40 mm

Winding crown

Screw-down, Triplock triple waterproofness system

Oyster architecture

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

Material

18 ct white gold

Movement

Calibre

4130, Manufacture Rolex

Model case

Perpetual, mechanical chronograph, self-winding

Oscillator

Paramagnetic blue Parachrom hairspring

Winding

Bidirectional self-winding via Perpetual rotor

Precision

Officially certified Swiss chronometer (COSC)

Functions

Centre hour, minute and seconds hands, small seconds hand at 6 o'clock. Chronograph (centre hand) accurate to within 1/8 of a second, 30-minute counter at 3 o'clock and 12-hour counter at 9 o'clock. Stop seconds for precise time setting

Bracelet

Clasp

Gold folding Oysterlock safety clasp

Bracelet material

Brown leather

Bracelet

Leather strap

Dial

Details

Meteorite dial with snailed small counters

Dial

Meteorite

The Cosmograph Daytona, introduced in 1963, was designed to meet the demands of professional racing drivers. With its highly reliable chronograph and bezel with tachymetric scale, it allows drivers to perfectly measure average speeds up to 400 kilometres or miles per hour, as they choose. An icon eternally joined in name and function to the high-performance world of motor sport.