Case / bezel material: Stainless steel One-touch 3-fold Clasp Stainless Steel Band Mineral Glass Screw Lock Back Black ion plated bezel 100-meter water resistance 1-second stopwatchMeasuring capacity: 11:59'59Measuring mode: Elapsed time Day and 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: 5 years on SR927W More Close
1-second stopwatchMeasuring capacity: 11:59'59Measuring mode: Elapsed time Day and 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: 5 years on SR927W
EFR-549SG-7AV EF-539D-1A5V EFR-539BK-1AV EFR-559DB-1A9V EFR-539L-1BV EFR-546BKG-1AV EF-550D-7AV EFR-526L-1AV EFR-534BK-1AV EFR-534BKG-1AV EFR-526D-1AV EFR-539SG-1AV