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Casio G-Shock GA-100-1A1 Analog-Digital Watch, Black Resin, 200m
Casio
$130.95
BRAND-NEW · WARRANTY INCLUDED
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Casio
Casio G-Shock GA-100-1A1 Analog-Digital Watch, Black Resin, 200m
- SKU:
- GA-100-1A1
- UPC:
- 079767443849
Casio G-Shock GA-100-1A1 Analog-Digital Watch, Black Resin, 200m
The GA-100-1A1 uses an oversized black resin case and a layered analog-digital display. Shock resistance, magnetic resistance and a 200-metre water-resistance rating support its sports-focused design. The two-hand dial works alongside digital time, world time, alarms and a 1/1000-second stopwatch with speed calculations.
Specifications
| Brand | Casio |
|---|---|
| Model reference | GA-100-1A1 |
| Collection | G-Shock |
| Display | Analog-digital |
| Case / strap colour | Black |
| Movement | Battery-powered quartz |
| Case dimensions (length × width × thickness) | 55 × 51.2 × 16.9 mm |
| Watch weight | 70 g |
| Case / bezel material | Resin |
| Glass | Mineral glass |
| Band | Resin band |
| Supported wrist size | 145–215 mm |
| Water-resistance rating | 200 metres |
Power and timekeeping
| Power and battery | Approx. 2 years on CR1220 |
|---|---|
| Timekeeping accuracy | ±15 seconds per month |
Functions and display
| Construction | Shock-resistant and magnetic-resistant construction; magnetic resistance compliant with JIS class 1. |
|---|---|
| World time | 29 time zones covering 48 cities plus UTC; daylight-saving time on/off and home-city/world-time-city swap. |
| Stopwatch | 1/1000-second measurement; capacity 99:59'59.999; elapsed time, lap time and split time. |
| Speed calculations | Speed display from 0 to 1,998 units/hour using an entered distance from 0.0 to 99.9 units; Mach indicator appears above 1,225 units/hour. |
| Countdown timer | 1-second measurement; range 24 hours; start time from 1 minute to 24 hours in 1-minute and 1-hour increments; auto-repeat function. |
| Alarms | Five daily alarms, including one snooze alarm; hourly time signal. |
| Illumination | Amber LED light with auto-light switch, selectable 1.5-second or 3-second duration, and afterglow. |
| Calendar | Full automatic calendar through 2099. |
| Display | 12/24-hour format; analog: two hands (hour and minute, with minute-hand movement every 20 seconds) and one speed dial; digital: hour, minute, second, pm, month, date and day. |
THE DETAILS
Casio GA-100-1A1, at a glance.
THE MOVEMENT
Quartz timekeeping
Battery-powered quartz · Approx. 2 years on CR1220 · 200 metres
NEW
Brand-new condition
INCLUDED
Warranty documentation
Detailed specifications
The GA-100-1A1 uses an oversized black resin case and a layered analog-digital display. Shock resistance, magnetic resistance and a 200-metre water-resistance rating support its sports-focused design. The two-hand dial works alongside digital time, world time, alarms and a 1/1000-second stopwatch with speed calculations.
Specifications
| Brand | Casio |
|---|---|
| Model reference | GA-100-1A1 |
| Collection | G-Shock |
| Display | Analog-digital |
| Case / strap colour | Black |
| Movement | Battery-powered quartz |
| Case dimensions (length × width × thickness) | 55 × 51.2 × 16.9 mm |
| Watch weight | 70 g |
| Case / bezel material | Resin |
| Glass | Mineral glass |
| Band | Resin band |
| Supported wrist size | 145–215 mm |
| Water-resistance rating | 200 metres |
Power and timekeeping
| Power and battery | Approx. 2 years on CR1220 |
|---|---|
| Timekeeping accuracy | ±15 seconds per month |
Functions and display
| Construction | Shock-resistant and magnetic-resistant construction; magnetic resistance compliant with JIS class 1. |
|---|---|
| World time | 29 time zones covering 48 cities plus UTC; daylight-saving time on/off and home-city/world-time-city swap. |
| Stopwatch | 1/1000-second measurement; capacity 99:59'59.999; elapsed time, lap time and split time. |
| Speed calculations | Speed display from 0 to 1,998 units/hour using an entered distance from 0.0 to 99.9 units; Mach indicator appears above 1,225 units/hour. |
| Countdown timer | 1-second measurement; range 24 hours; start time from 1 minute to 24 hours in 1-minute and 1-hour increments; auto-repeat function. |
| Alarms | Five daily alarms, including one snooze alarm; hourly time signal. |
| Illumination | Amber LED light with auto-light switch, selectable 1.5-second or 3-second duration, and afterglow. |
| Calendar | Full automatic calendar through 2099. |
| Display | 12/24-hour format; analog: two hands (hour and minute, with minute-hand movement every 20 seconds) and one speed dial; digital: hour, minute, second, pm, month, date and day. |