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G-Shock Watches BLACK / O/S GSTB400X-1A4
G-Shock Watches BLACK / O/S GSTB400X-1A4
G-Shock Watches BLACK / O/S GSTB400X-1A4
G-Shock Watches BLACK / O/S GSTB400X-1A4
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GSTB400X-1A4

Regular price Was: $400.00 Sale price $320.00
Unit price  per 

G-Shock watches hardly need an introduction. Their appeal is obvious; they are one of the few products in the world that can call itself battle tested, and mean it literally. G-Shock watches haven’t adopted a rugged aesthetic as a marketing angle, they really have been, and continue to be used by deep sea divers, special forces soldiers, and astronauts.

Their unique look is a byproduct of being constructed to stand up to the punishing demands that these professions dole out to a watch, and still keep precise time.

Introducing the GSTB400X-1A4, the newest model of the slim G-STEEL GSTB400 series. The GSTB400X-1A4 sports a lightweight yet tough carbon bezel, which is a combination of carbon fiber reinforced resin and carbon sheets. This stylishly stealthy timepiece is styled with a black resin band and a black IP case with red accents.

The GSTB400 is made possible by even further miniaturization of its parts and thinning of its modules without sacrificing any Bluetooth or solar function. Power consumption has also been significantly reduced.

In addition, the carbon core guard structure of this model helps to make it the thinnest of the G-STEEL Series (as of Apr 2021) while maintaining a high level of impact resistance. The thickness from the back cover to the bezel top is only 12.9 mm, which is more than one millimeter less than the GSTB100 model. In terms of design, the number of button guards has been reduced as much as possible, enabling the use of large stainless steel buttons that are slim yet easy to operate.

  • Approx. battery operating time:
  • 7 months on rechargeable battery 
  • 18 months on rechargeable battery 
  • Case / bezel material: Resin / Stainless steel
  • Stainless Steel Band
  • Mineral Glass
  • Neobrite
  • Shock Resistant
  • Carbon Core Guard structure

GSTB400X-1A4

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