Japan Treasure Factory
Casio G-SHOCK GST-B1000-2AJF G-STEEL SLEEK STYLE — Bluetooth Tough Solar Urethane Band
Casio G-SHOCK GST-B1000-2AJF G-STEEL SLEEK STYLE — Bluetooth Tough Solar Urethane Band
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G-SHOCK G-STEEL GST-B1000 — SLEEK STYLE
G-STEEL series / Released August 2026
The GST-B1000-2AJF reconstructs G-SHOCK's toughness and functional beauty with a refined, minimal SLEEK STYLE expression on a urethane band. The urethane band offers comfort suited to everyday wear and an active look, achieving a light and soft fit. The bezel design and brick pattern inherited from the original G-SHOCK "DW-5000C" add a sporty touch.
A metal bezel guards against impact while a carbon-fiber-reinforced resin case protects the module. Combined with a glass-bonding method and a compact module, the watch achieves a shock-resistant structure while reducing thickness and weight, balancing comfortable wear with practicality. An all-round timepiece suited to business, casual, and outdoor moments alike.
Specifications
| Model | GST-B1000-2AJF |
| Series | G-SHOCK G-STEEL / SLEEK STYLE |
| Case size | 46.9 × 44.2 × 11.6 mm / 1.85 × 1.74 × 0.46 in |
| Weight | 58 g / 2.0 oz |
| Case / bezel material | Carbon fiber reinforced resin (biomass plastic) / stainless steel |
| Band | Resin (urethane) band (biomass plastic) |
| Glass | Mineral glass |
| Water resistance | 20-bar (200-meter) |
| Structure | Shock resistant, Carbon Core Guard structure |
| Time correction | Bluetooth (auto time correction via smartphone) |
| Power source | Tough Solar |
| Mobile Link / App | CASIO WATCHES app — auto time correction, easy watch setting, Time & Place, phone finder |
| Functions | Stopwatch (1-sec, 30-min), Timer (1-min unit, max 30 min), Time alarm, LED light (Super Illuminator with afterglow), Full auto calendar, Power saving function, Battery charge warning |
| Battery life | ~5 months (with functions) / ~18 months (power saving) |
| Band size | 145–215 mm |
| Release date | August 2026 |
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