Case: Stainless steel
Accuracy per month: 20 sec
Battery Type: SR621SW
Battery Life: 3
Accuracy: 20 seconds per month
Approx. battery life
3 years on SR621SW
Regular timekeeping
Analog: 3 hands (Hour, minute, second), 3 dials (date, day, 24-hour)
Size of case / total weight
BEM-302D...... 45.0 X 40.0 X 11.0 mm / 125 g