Casio G-Steel GST-B400 Slim Multi-Function Watch
G-Steel GST-B400: slimmer than its predecessor, carbon core protection, triple-eye dual-hand dial in red-black, with world time, alarms, and LED dual lighting.
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Product Details
The GST-B400 represents the next step in the G-Steel evolution -- thinner, sharper, and more refined than the outgoing GST-B100 while retaining every ounce of the line's hard-wearing character. Carbon-core guard construction maintains shock resistance as the components become more compact, bringing total thickness down to just 12.9 mm. The dial is an eye-catching triple-register, dual-hand layout in red and black, with the case corners locked by six visible screws for that unmistakable mechanical, industrial look. Metal vapour-deposition technology elevates surface quality across the board. The stainless steel bracelet adds weight and authority to the wearing experience. Features include shock resistance, auto calendar, 12/24 h mode, world time, countdown timer, stopwatch, multi-function alarms, and LED dual-layer illumination. Case: 46.6 x 49.6 mm, thickness 12.9 mm.
- Carbon-core guard construction with shock resistance
- Slim profile: 12.9 mm thick (1 mm thinner than GST-B100)
- Triple-register dual-hand dial, red-black colourway
- Six-screw case corners, metal vapour-deposition finish
- Functions: world time, auto calendar, countdown, stopwatch, multi-alarm, LED dual lighting
- Case: 46.6 x 49.6 mm
- Steel bracelet option available
- Model: G-Steel GST-B400
- Case Size: 46.6 x 49.6 mm
- Thickness: 12.9 mm
- Construction: Carbon-core guard, shock resistant
- Display: Triple-register dual-hand analogue-digital
- Functions: World time, auto calendar, countdown, stopwatch, alarms, LED
- Bracelet: Stainless steel (rubber strap also available)
Customer Reviews
Frequently Asked Questions
How slim is the GST-B400 compared to a standard G-Shock?
The GST-B400 is approximately 11mm thick compared to 15-18mm for a typical GA/GW model. The difference is very noticeable in everyday wear.
Does the solar panel charge indoors under artificial light?
Yes, it charges under indoor fluorescent and LED light, though slower than outdoor sunlight. Regular indoor use is enough to maintain the charge level.
What multi-functions are included on the GST-B400?
The watch features world time, stopwatch, countdown timer, multiple alarms, and Bluetooth mobile link for time synchronisation.
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