THE TACHYMETRIC SCALE
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.
BRIGHT BLUE DIAL
WITH CHRONOGRAPH COUNTERS
This model features a bright blue dial with snailed counters, 18 ct gold applique hour markers and hands with a Chromalight display, a highly-legible luminescent material. The central sweep seconds hand allows an accurate reading of 1/8 second, while the two counters on the dial display the lapsed time in hours and minutes. Drivers can accurately map out their track times and tactics without fail.
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MODEL CASE
- 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
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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
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BRACELET
- BRACELET
- Oyster, flat three-piece links
- BRACELET MATERIAL
- 18 ct white gold
- CLASP
- Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
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DIAL
- DIAL
- Bright blue
- DETAILS
- Highly legible Chromalight display with long-lasting blue luminescence
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CERTIFICATION
- CERTIFICATION
- Superlative Chronometer (COSC + Rolex certification after casing)