GBM-2100-1A3

Basic information Case size (length × width × height) 49.3 × 44.4 × 11.9 mm Weight 72 g Case and frame material Resin (bio) / stainless steel Strap Resin band (bio) Build Shock resistant Water resistance Water resistant up to 200 meters Power source and battery life Tough Solar (solar-powered) Smartphone connectivity features / app connectivity Mobile link (wireless connection via Bluetooth®) Apps CASIO WATCHES App connectivity features Automatic time setting Easy watch setup World time for approximately 300 cities Time and place Reminder Phone finder Watch features World time World time 38 time zones (38 cities + UTC), automatic DST switch, local city / world city switch Stopwatch Accurate to 1/100 second, measurement range: from 00'00''00 to 59'59''99 (first 60 minutes) and from 1:00'00 to 23:59'59 (after 60 minutes), measurement units: 1/100 second (first 60 minutes), one second (after 60 minutes), modes: elapsed time, lap/split time Timer Measurement unit: 1 second, countdown range: 60 minutes, start time setting range: 1 second to 60 minutes (with 1-second increment or 1-minute increment) Alarm / hourly time signal Alarm (5 daily alarms) Hourly time signal Light Dual LED light, LED face light (high-intensity lamp, adjustable lighting duration (1.5 seconds or 3 seconds), fade-in/fade-out) Backlight with LED technology for digital display (high-intensity lamp, adjustable lighting duration (1.5 seconds or 3 seconds), fade-in/fade-out) Light color White LED Calendar Full automatic calendar (until 2099) Mute feature Enable/disable button tone Power saving Power saving mode (screen turns off to save energy when in dark areas) Display / battery level alert Battery level indicator Operating time Approximate battery life: 7 months with rechargeable battery (normal use without light exposure after charging) 18 months with rechargeable battery (storage in complete darkness with power saving mode after full charge) Accuracy ±15 seconds per month (without mobile link function) Other features Hand displacement feature (hands move away from the screen to view digital content without obstruction) 12/24-hour format Date/month display toggle Day display (day of the week selectable in six languages) Regular time recording: Analog: two hands (hours, minutes (moves every 20 seconds)), one disc (battery charge level, mode) Digital: hours, minutes, seconds, PM, month, date, day