GMD-B300-1

Case size

46.4 mm

Case material

Resin / bio-based resin

Movement

Quartz

Power reserve

2 h

Water resistance

200 m

Bracelet / strap

Bio-based resin

Functions

- Bluetooth connectivity; connects to a smartphone and automatically adjusts the time<br>- Mobile link via Bluetooth®<br>- CASIO WATCHES app connectivity<br>- Auto time adjustment<br>- Easy watch setting<br>- Approximately 300 world time cities<br>- Life log data<br>- Stopwatch data transfer<br>- App information<br>- Time & place<br>- Phone finder<br>- Step count measurement<br>- Step count display range: 0 to 999,999 steps<br>- Step goal progress display<br>- Step count goal setting range: 1,000 to 50,000 steps in 1,000-step increments<br>- Step count graph showing hourly step count for the past 7 hours on a 6-level graph<br>- Step indicator<br>- Dual time with home-time swapping<br>- 1/100-second stopwatch<br>- Stopwatch measuring capacity: 00'00''00–59'59''99 for the first 60 minutes; 1:00'00–23:59'59 after 60 minutes<br>- Stopwatch measuring unit: 1/100 second for the first 60 minutes; 1 second after 60 minutes<br>- Stopwatch measuring modes: elapsed time, lap time, split time<br>- Stopwatch recorded data: up to 200 records, including measurement start year, month, date, hour, minute, and lap/split times<br>- Countdown timer<br>- Interval timer with up to five time settings<br>- Timer measuring unit: 1 second<br>- Timer input range: 00'00" to 60'00", in 1-second and 1-minute increments<br>- Timer auto-repeat, with 1 to 20 repeats selectable<br>- Timer auto start<br>- Five daily alarms<br>- Hourly time signal<br>- LED backlight with Super Illuminator<br>- Auto light switch<br>- Selectable illumination duration: 1.5 seconds or 3 seconds<br>- Afterglow<br>- Full auto-calendar through 2099<br>- Button operation tone on/off<br>- Power Saving on/off<br>- Low battery alert<br>- 12/24-hour format<br>- Regular timekeeping: hour, minute, second, PM, year, month, date, and day