Casio EFV-540D-2A

    Case size (L× W× H)
    48.5 × 43.8 × 11.6 mm
    Weight
    144 g
    Case and bezel material
    Stainless steel
    Band
    Stainless Steel Band
    One-touch 3-fold Clasp
    Water resistance
    100-meter water resistance
    Power supply and battery life
    Approx. battery life: 3 years on SR920SW

    Glass
    Mineral Glass
    Back plate
    Screw Lock Back

    Stopwatch
    1-second stopwatch Measuring capacity: 9'59 Measuring modes: Elapsed time, split time, 1st-2nd place times
    Accuracy
    Accuracy: ±20 seconds per month
    Other features
    Regular timekeeping: Analog: 3 hands (hour, minute, second), 3 dials (stopwatch minutes, stopwatch seconds, 24-hour)
    Date display