EFR-539DE-8AVUDF

Case size (L× W× H): 54.1 × 49.5 × 11.7 mm
Weight: 184 g
Case and bezel material: Stainless steel / Aluminum
Stainless Steel Band
Mineral Glass
Screw Lock Back
Grey ion plated bezel
One-touch 3-fold Clasp
Water resistance: 100m
Approx. battery life: 2 years on SR920SW

1/10-second stopwatch
Measuring capacity: 59'59.9''
Measuring modes: Elapsed time, split time, 1st-2nd place times
Accuracy: ±20 seconds per month

Other features
Regular timekeeping:
Analog: 3 hands (hour, minute, second), 3 dials (stopwatch 1/10 seconds, stopwatch minutes, stopwatch seconds)
Date display