EFR-571AT-1ADR

1-second stopwatch
Measuring capacity: 9'59
Date display
Regular timekeeping
Analog: 3 hands (hour, minutes, second),
3 dials (stopwatch minutes, stopwatch seconds, 24-hour)
Accuracy: ±20 seconds per month
Approx. battery life: 3 years on SR920SW
Size of case : 51×47.1×11.7mm
Total weight : 146g