- Case / bezel material: Stainless steel
- Resin Band
- Mineral Glass
- Screw Lock Back
- 50-meter water resistance
- 1-second stopwatch
- Measuring capacity: 29'59
- Measuring mode: Elapsed time
- Regular timekeeping Analog: 3 hands (hour, minute, second),
3 dials (24-hour, stopwatch minutes, stopwatch seconds) - Accuracy: ??????20 seconds per month
- Approx. battery life: 2 years on SR621SW
- Size of case : 51.5???|?44???|?10.9mm
- Total weight : 91g
