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Japan Treasure Factory

Casio G-SHOCK GST-B1000-1AJF G-STEEL SLEEK STYLE — Bluetooth Tough Solar Urethane Band

Casio G-SHOCK GST-B1000-1AJF G-STEEL SLEEK STYLE — Bluetooth Tough Solar Urethane Band

Regular price $434.29 USD
Regular price Sale price $434.29 USD
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G-SHOCK G-STEEL GST-B1000 — SLEEK STYLE

G-STEEL series / Released August 2026

The GST-B1000-1AJF 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-B1000-1AJF
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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