Putting the Tough into Tough Solar the GR-8900A-1 is designed to withstand anything nature can throw at it!
Completely black with white numbers* the display is large enough for anybody, no matter their eyesight.
And speaking of sight, if you have trouble reading the display, then press the oversized button at the bottom. Easy to see, and the illumination is extremely bright!
Casio knows that some features (like the light mentioned above) can drain the battery very quickly, so they put in a powerful solar panel, designed to generate more than enough electricity for those functions while keeping the watch running smoothly!
You expect Casio to be able to withstand punishment, and you won’t be disappointed! It has 100m shock resistance, as well as 200m water resistance, so feel free to take your watch with you, if you’re afraid somebody’ll steal it. Just make sure you (and the watch) are dry when you press the buttons.
If you’re in the dark for a while, the watch turns its display off, so you’ll be able to save battery power. You can always press a button to turn it back on though, so don’t think your battery’s gone flat too quickly.
- Mineral Glass
- Shock Resistant
- 200-meter water resistance
- Case / bezel material: Resin / Aluminum
- Resin Band
- Full auto LED light (Super Illuminator)
Selectable illumination duration, afterglow
- Solar powered
- World time
31 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off
- 1/100-second stopwatch
Measuring capacity: 23:59'59.99''
Measuring modes: Elapsed time, split time, 1st-2nd place times
- Countdown timer
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
- 5 daily alarms (with 1 snooze alarm)
- Hourly time signal
- Battery power indicator
- Power Saving (display goes blank to save power when the watch is left in the dark)
- Full auto-calendar (to year 2099)
- 12/24-hour format
- Button operation tone on/off
- Regular timekeeping: Hour, minute, second, pm, month, date, day
- Accuracy: ±15 seconds per month
- Approx. battery operating time:
12 months on rechargeable battery (operation period with normal use without exposure to light after charge)
34 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
- Size of case: 55.1 × 52.5 × 16.3 mm
- Total weight: 69 g
Dark but easy to read review by Jeremy R on 20/09/2016
I was worried that it'd be hard to read because the display is pitch black to match the watch, but the numbers are bright and easy to read.