JAPAN REFERENCECASIO · JAPANESE-MARKET REFERENCE
GST-W310-7AJF
GST-W310-7AJF
CASIO GST-W310-7AJF is a Japanese-market reference. The resin / stainless steel case and bezel are paired with a resin band. Tough Solar (solar charging system). Features include shock resistance, MULTIBAND radio-controlled timekeeping and world time. Listed water resistance: 20-bar water resistance.
- Reference
- GST-W310-7AJF
- Case (H × W × D)
- 55.9 × 49.3 × 15.3 mm
- Weight
- 92 g
- Listed water resistance
- 20-bar water resistance
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Setup & support
Model reference: GST-W310-7AJF
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Warranty & service
Local warranty service outside Japan is not guaranteed. Read our return and repair policy and ask about your exact reference before ordering.
Bracelet fit & adjustments
Check the case dimensions and band details in the specifications. Ask us about fit, included links and adjustment options before placing an order.
Packaging & included items
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Ask about this referenceProduct details
- Model
- GST-W310-7AJF
- JAN / EAN
- 4549526170775
- Intended use
- Wristwatch
- Band material
- Resin band
- Crystal material
- Mineral glass
- Weight
- 92 g
- Case size (L × W × H)
- 55.9 × 49.3 × 15.3 mm
- Price
- ¥51,980 JPY
- Country of origin
- JP
Specifications
Specifications
| Release date | September 2017 |
|---|---|
| Japan MSRP | Japan MSRP: ¥49,500 (including Japanese tax) |
| Case size (H × W × D) | 55.9 × 49.3 × 15.3 mm |
| Weight | 92 g |
| Case and bezel material | Resin / stainless steel |
| Band | Resin band |
| Construction | Shock resistant |
| Water resistance | 20-bar water resistance |
| Time adjustment | MULTIBAND 6 radio-controlled timekeeping: Japan, North America, Europe and China |
| Power supply and battery life | Tough Solar (solar charging system) |
Exterior details
Exterior details
| Glass | Mineral glass |
|---|---|
| Other features | Neobrite |
Watch functions
Watch functions
| World time | World time: 48 cities (31 time zones, daylight saving on/off) plus UTC (Coordinated Universal Time); home city / world time city swapping |
|---|---|
| Stopwatch | Stopwatch: 1/100 second, 60-minute capacity, split time |
| Timer | Countdown timer: 1-second setting increments, maximum 100 minutes, 1-second measurement |
| Alarm | 5 daily alarms with countdown and hourly time signal |
| Light | Double LED light: |
| LED light for the dial: full auto light, Super Illuminator, afterglow, selectable illumination duration (1.5 seconds / 3 seconds); | |
| LED backlight for the LCD: full auto light, Super Illuminator, afterglow, selectable illumination duration (1.5 seconds / 3 seconds) | |
| Light color | LED: white |
| Calendar | Full auto-calendar |
| Power saving | Power saving: turns off the display after a period in the dark |
| Battery indicator and alerts | Battery level indicator |
| Operating time | Operating time from a full charge without further solar charging |
| With normal functions in use: approximately 7 months | |
| In power-saving mode: approximately 18 months | |
| Accuracy | Without radio signal reception, the watch operates at normal quartz accuracy (±15 seconds per month). |
| Other features | 12/24-hour format; hand shift (temporarily moves the hands away from the LCD for easier viewing) |
| Button operation tone | Button operation tone on/off |
| Time calibration details | Home time cities (supported reception cities) / time calibration signals |
| Tokyo, Seoul, Taipei / Japan: JJY40 and JJY60 | |
| (Honolulu), (Anchorage), Vancouver, Los Angeles, Edmonton, Denver, Mexico City, Chicago, New York, Halifax, St. John's / United States: WWVB | |
| Lisbon, London, Madrid, Paris, Rome, Berlin, Stockholm, Athens, (Moscow) / United Kingdom: MSF; Germany: DCF77 | |
| Hong Kong, Beijing / China: BPC | |
| Cities in parentheses may receive signals under favorable conditions. Radio signal reception: automatic (up to 6 times a day, up to 5 for China) / manual | |
| Japan: JJY, 40 kHz / 60 kHz (supports both Fukushima and Kyushu stations) | |
| North America: WWVB, 60 kHz | |
| Europe: MSF / DCF77, 60 kHz / 77.5 kHz | |
| China: BPC, 68.5 kHz | |
| When the home city supports reception, the watch receives the appropriate station for that city. The time difference is set according to the selected city. | |

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