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Introducing new color variations to the lineup of slim G-STEEL GST-B400 models with new, improved designs made possible by a thin module and carbon core guard structure. There is a standard model in this lineup, the GST-B400 with silver color face and resin band.
The GST-B400 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 GST-B100 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.
The top bezel has been given five different finishes, while the middle bezel has been given four different finishes, which creates an elegant effect and changes the appearance of the texture of the metal depending on the viewing angle.

HIDDEN COAST Theme Series
This new color model was designed under the theme of exploration of an unknown coastal region.
This new lineup is based on the powerful GA-900.
The GA-900HC is made entirely of matte-colored resin parts that create a calm and serene design.
This Series is design to go well with street fashions and other styles.

HIDDEN COAST Theme Series
This new color model was designed under the theme of exploration of an unknown coastal region.
This new lineup is based on the thin octagonal GA-2100.
GA-2100HC uses transparent resin to cover the watch case and highly transparent resin for the band.
This Series is design to go well with street fashions and other styles.

From the G-LIDE Series of G-SHOCK extreme sports watches comes a pair of new models that add night surfing designs to the GBX-100.
This new model comes with the ability to display information required by surfers (high tide and low tide times and levels), and to use a phone application for simple selection of one of approximately 3,300 locations around the globe.
An app running on a smartphone can be used for quick and easy access to surfer-essential tide information and sunrise and sunset times at approximately 3,000 locations worldwide. A highresolution MIP LCD enhances readability, and enables display of tide graph, moon data, high tide and low tide times, tide levels, and sunrise and sunset times.
These models have a guard structure that withstands impact from above, below, left, and right, making them the perfect choice for wear while surfing.
The bezel is composed of a combination of resin and metal, with stainless steel for the bezel top. The bezel combines hairline and honed surface finishes to create an elegant look.