Case / bezel material: Stainless steel Stainless Steel Band One-touch 3-fold Clasp Screw Lock Back Mineral Glass Gold ion plated bezel Gold ion plated band 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
EF-539D-1A5V EFR-526SG-7A5V EFR-538L-1AV EF-558D-2AV EFR-526BK-1A1V EFR-547D-1AV EFR-550L-1AV EFR-555L-2AV EFR-552D-1AV EF-558SG-1AV EFR-539L-1AV EFR-549D-1A8V