EF-539D-1A5VNew bezel design combines ion-plated stainless steel and aluminum panels.• Popular large case• Chronograph• Tachymeter• 100-meter water resistance• Stainless steel case and band
- Mineral Glass
- Partial ion plated
- Tachymeter
- Screw Lock Back
- 100-meter water resistance
- Case / bezel material:
EF-539D-1A5VNew bezel design combines ion-plated stainless steel and aluminum panels.• Popular large case• Chronograph• Tachymeter• 100-meter water resistance• Stainless steel case and band
- Mineral Glass
- Partial ion plated
- Tachymeter
- Screw Lock Back
- 100-meter water resistance
- Case / bezel material: Stainless steel
- ""Double-lock, 1-press, 3-fold Buckle""
- Stainless Steel Band
- Solid Band
- 1-second stopwatchMeasuring capacity: 11:59'59Measuring mode: Elapsed time
- Date display
- Regular timekeepingAnalog: 3 hands (hour, minute, stopwatch seconds),3 dials (timekeeping second, stopwatch hours, stopwatch minutes)
- Accuracy: ±20 seconds per month
- Approx. battery life: 2 years on SR927W
- Size of case/total weight: 53.5 X 48.5 X 11.5 mm/198 g