Description
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.
MODEL CASE
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
