Casio G-Steel GST-B400 Slim Multi-Function Watch Steel or Rubber Strap
G-Steel GST-B400 at 330 CNY on steel bracelet or 200 CNY on rubber strap: carbon-core shock protection, 12.9 mm slim profile, world time, multi-alarm, LED dual lighting.
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- ✓ Top-tier 1:1 UA quality
Product Details
The G-Steel GST-B400 makes toughness and refinement coexist beautifully. Carbon-core guard construction keeps the movement protected against sudden impacts while allowing the overall thickness to be trimmed to just 12.9 mm -- a full millimetre slimmer than the outgoing GST-B100. The triple-register dual-hand dial in red and black radiates a powerful, athletic character, amplified by the six visible screws locking the six case corners in place. Metal vapour-deposition technology across the case elevates surface quality far beyond what standard electroplating achieves. Two strap configurations are available: a stainless steel bracelet or a rubber resin band -- choose the look that suits your style. Full function set: anti-shock, auto calendar, 12/24 h, world time, countdown, stopwatch, multi-function alarms, and LED dual-illumination. Case: 46.6 x 49.6 mm.
- Carbon-core guard construction, shock resistant
- Ultra-slim 12.9 mm profile (thinner than GST-B100)
- Dual strap options: steel bracelet or rubber band
- Triple-register dual-hand dial, red-black, six-screw case corners
- Metal vapour-deposition surface finish
- Functions: auto calendar, world time, countdown, stopwatch, multi-alarm, LED dual lighting
- Model: G-Steel GST-B400
- Case Size: 46.6 x 49.6 mm
- Thickness: 12.9 mm
- Construction: Carbon-core guard, shock resistant
- Strap Options: Steel bracelet / rubber band
- Functions: World time, auto calendar, countdown, stopwatch, multi-alarm, LED dual lighting
- Finish: Metal vapour-deposition
Customer Reviews
Frequently Asked Questions
Is the steel bracelet on this GST-B400 rep solid-link or hollow-link?
The links are solid construction, which gives a better weight feel and greater resistance to flex or distortion over time compared to hollow links.
Can I order one version now and swap the strap to the other later?
The strap attachment is standard on this model. However, since the steel bracelet and rubber strap use different end-piece widths, you would need the corresponding end pieces to swap cleanly.
Does the slim case affect the battery life of the solar cell?
The smaller case houses the same solar cell technology. In typical indoor conditions it charges at the same rate as other G-Steel models, maintaining charge for months under normal use.
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