Casio ECB-900MDC-1A

    Case size (L× W× H)
    51.5 × 48 × 13.9 mm
    Weight
    164 g
    Case and bezel material
    Case / bezel material: Stainless steel
    Band
    Stainless Steel Band
    One-touch 3-fold Clasp
    Water resistance
    100-meter water resistance
    Power supply and battery life
    Tough Solar (Solar powered)

    Smartphone Link feature
    Mobile link (Wireless linking using Bluetooth®)
    Apps
    EDIFICE Connected

    Glass
    Mineral Glass
    Bezel features
    Tachymeter
    Surface treatment
    Gray ion plated case
    Gray ion plated band

    World time
    World time 39 time zones* (39 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping *May be updated when connected to a smartphone.
    Stopwatch
    1/1000-second stopwatch Measuring capacity: 00'00''000~59'59''999 (for the first 60 minutes) 1:00'00''0~23:59'59''9 (after 60 minutes) Measuring unit: 1/1000 second (for the first 60 minutes) 1/10 second (after 60 minutes) Measuring modes: Elapsed time, lap time Recorded data: Up to 200 records (measurement lap times) Other: Speed (0 to 400 units/hour)
    Timer
    Countdown timer Measuring unit: 1/10 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
    Alarm/hourly time signal
    Hourly time signal
    5 multi-function alarms (with daily, 1 time, schedule)
    Light
    Double LED light LED light for the face (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
    Light color
    LED:White
    Calendar
    Full auto-calendar (to year 2099)
    Mute feature
    Button operation tone on/off
    Energy saving feature
    Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
    Battery display/alert
    Battery level indicator
    Run time
    Approx. battery operating time: 6 months on rechargeable battery (operation period with normal use without exposure to light after charge) 19 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
    Accuracy
    Accuracy: ±15 seconds per month (with no mobile link function)
    Other features
    12/24-hour format
    Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
    Regular timekeeping: Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 1 dial (speed indicator) Digital: Hour, minute, second, pm, month, date, day