1-second stopwatch
Measuring capacity: 29'59
Measuring mode: Elapsed time
Accuracy: ±20 seconds per month
Approx. battery life
2 years on SR621SW
Regular timekeeping
Analog: 3 hands (Hour, minute, second), 3 dials (Stopwatch minute and second, 24-hour)
Size of case / total weight
EF-544D 47.0 X 42.5 X 10.2 mm / 151 g
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