JAPAN REFERENCECASIO · JAPANESE-MARKET REFERENCE
GST-B1000BD-1AJF
GST-B1000BD-1AJF
This SLEEK STYLE model gives G-SHOCK toughness a minimalist metal exterior. A logo-free bezel changes character with the light, while hairline and mirror finishes add depth to the stainless steel bracelet. Bezel details and a brick pattern recall the original DW-5000C. A metal bezel protects against impact and a carbon-fiber-reinforced resin case protects the module. Bonded glass and a compact module reduce thickness and weight for comfortable everyday wear. The all-black metal design works across business, casual and outdoor settings. Major resin components in the case use bio-based resin.
- Reference
- GST-B1000BD-1AJF
- Case (H × W × D)
- 46.9 × 44.2 × 11.6 mm
- Weight
- 118 g
- Listed water resistance
- 20-bar water resistance
🎉 Buy 2 Watches, Get 20% Off One
Choose any 2 watches and receive 20% off the lower-priced watch.
All products are eligible. The offer applies to one watch per order.
🚚 Get Extra Savings to Help Cover Shipping
Spend ¥35,000 (Approximately $225 USD | €198 EUR) or more after product discounts and receive
an additional ¥3,000 (Approximately $20 USD | €18 EUR) off your order subtotal.
Both offers can be combined and are applied automatically at checkout. No code needed.
The qualifying subtotal excludes shipping and taxes. The qualifying amount and discount are based on Japanese yen. Amounts shown in your selected currency may vary with exchange rates.
Couldn't load pickup availability
Read our shipping and return information before ordering. Model-specific warranty and repair guidance is available below.
Setup & support
Model reference: GST-B1000BD-1AJF
Search the official manual using this model or the module number on your watch.
Find the official CASIO manualBefore you choose
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
Included items can vary by reference. Contact us with the model number to confirm the box, documents and accessories.
Ask about this referenceProduct details
- Model
- GST-B1000BD-1AJF
- JAN / EAN
- 4549526413933
- Band material
- Metal bracelet
- Crystal material
- Mineral glass
- Weight
- 118 g
- Case size (L × W × H)
- 46.9 × 44.2 × 11.6 mm
- Price
- ¥79,436 JPY
- Country of origin
- JP
Specifications
Specifications
| Release date | June 2026 |
|---|---|
| Case size (H × W × D) | 46.9 × 44.2 × 11.6 mm |
| Weight | 118 g |
| Case and bezel material | Carbon-fiber-reinforced bio-based resin / stainless steel |
| Band | Solid stainless steel bracelet; One-touch three-fold clasp |
| Construction | Shock-resistant construction; Carbon Core Guard structure |
| Water resistance | 20-bar water resistance |
| Time adjustment | Bluetooth: connects to a smartphone for automatic time adjustment |
| Power supply and battery life | Tough Solar (solar charging system) |
Exterior details
Exterior details
| Glass | Mineral glass |
|---|---|
| Crown | Screw-lock crown |
| Surface treatment | Black ion plating (bezel); Black ion plating (band) |
| Compatible wrist size | 150–205mm |
| Other features | Neobrite |
Watch functions
Watch functions
| Stopwatch | Stopwatch: 1 second, 30-minute capacity |
|---|---|
| Timer | Countdown timer: 1-minute setting increments, maximum 30 minutes, 1-second measurement |
| Alarm | Daily alarm |
| Light | LED light: Super Illuminator, afterglow |
| Light color | LED: white |
| Calendar | Full auto-calendar |
| Power saving | Power saving: stops the hands after a period in the dark |
| Battery indicator and alerts | Battery charge warning |
| Operating time | Operating time from a full charge without solar generation: approximately 5 months with normal function use, or 18 months in power-saving mode |
| Accuracy | Without smartphone connection, the watch operates at normal quartz accuracy (±15 seconds per month). |
| Other features | Date and day display |
| Mobile Link | Bluetooth connectivity with a compatible smartphone |
| Compatible app | CASIO WATCHES |
| App functions | Automatic time adjustment; Easy watch settings; Time & Place; Phone finder |

Explore a feature upgrade
A different reference with additional listed features. Check all specifications before choosing.
Find your next reference
Similar watches
Explore models selected by series, materials, size and listed features.
Recently viewed
Pick up where you left off in this browsing session.
JAPAN REFERENCE