EF-550-1AV |
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• 1/20-second chronograph
• Tachymeter
• Retrograde
• 100-meter water resistance
• Stainless steel case
• Face design in the image of the engine cover
- Partial ion plated
- Retrograde dial
- Mineral Glass
- Tachymeter
- Screw Lock Crown
- Screw Lock Back
- 100-meter water resistance
- Case / bezel material: Stainless steel
- Resin Band
- 1/20-second stopwatch
Measuring capacity: 59'59.95''
Measuring mode: Elapsed time - Date display
- Regular timekeeping
Analog: 3 hands (hour, minute, stopwatch seconds)
3 dials (timekeeping 24-hour, timekeeping second / stopwatch 1/20 second, stopwatch minutes) - Accuracy: ±20 seconds per month
- Approx. battery life: 2 years on SR927W
- Size of case: 50.8 X 45.1 X 12.1 mm
- Total weight: 100 g
