HIGH-PERFORMANCE CHRONOGRAPH With its tachymetric scale, its three counters and its pushers, the Cosmograph Daytona was designed to be the ultimate timing tool for endurance racing drivers. The bezel features a tachymetric scale to read average speed over a given distance based on elapsed time. This scale offers optimal legibility, making the Cosmograph Daytona the ideal instrument for measuring speeds up to 400 units per hour, expressed in kilometres or miles.
MODEL CASE
MODEL CASE
Oyster, 40 mm, Everose gold
OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown
DIAMETER
40 mm
MATERIAL
18 ct Everose gold
BEZEL
Fixed, with engraved tachymetric scale, in 18 ct Everose gold
WINDING CROWN
Screw-down, Triplock triple waterproofness system
CRYSTAL
Scratch-resistant sapphire
WATER RESISTANCE
Waterproof to 100 metres / 330 feet
MOVEMENT
MOVEMENT
Perpetual, mechanical chronograph, self-winding
CALIBRE
4130, Manufacture Rolex
PRECISION
-2/+2 sec/day, after casing
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
OSCILLATOR
Paramagnetic blue Parachrom hairspring
WINDING
Bidirectional self-winding via Perpetual rotor
POWER RESERVE
Approximately 72 hours
BRACELET
BRACELET
Oyster, flat three-piece links
BRACELET MATERIAL
18 ct Everose gold
CLASP
Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
DIAL
DIAL
Sundust and black
DETAILS
Highly legible Chromalight display with long-lasting blue luminescence
