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| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
•Chronograph
•Tachymeter
•A rotary disk at 3 o’’clock to indicates the 24-hour
•Fast-moving retrograde dial at 6 o’’clock
•100-meter water resistant
•Stainless steel case and band
•Face design in the image of the F1 circuit
•Retrograde Partial ion-plated
1/20-second stopwatch
Measuring capacity: 59'59.95"
Measuring mode: Elapsed time
Accuracy: ±20 seconds per month
Approx. battery life
2 years on SR927W
Date display
Regular timekeeping
Analog: 3 hands (timekeeping hour and minutes, stopwatch seconds), 3 dials (timekeeping 24-hour and seconds, stopwatch minutes)
Size of case / total weight
EF-550D...... 50.8 X 45.1 X 12.1 mm / 181 g
