EF-552PB-1A2

EF-552PB-1A4

Specifications

1-second stopwatch
Measuring capacity: 29'59
Measuring mode: Elapsed time
Regular timekeeping
Analog: 3 hands (hour, minute, second),
3 dials (stopwatch seconds, 24-hour, stopwatch minutes)
Accuracy: ±20 seconds per month
Approx. battery life: 2 years on SR621SW
Size of case: 49.1 × 43.8 × 10.8 mm
Total weight: 81 g