Cosmograph Daytona Pre-Daytona 6234

Three-register Oyster chronographChronographA watch function for starting, stopping and resetting an elapsed-time measurement independently of the ordinary time display. that, with the earlier 6034, set the design template the Daytona still follows. Large registers crowd a dial carrying tachymeterTachymeterA chronograph scale that converts the time taken to travel a known distance into average speed. The distance and scale units must correspond. and telemeterA scale estimating distance from the interval between seeing an event and hearing its sound, such as lightning followed by thunder. scales. Production was very limited; replaced by the 6238 after about six years.