CASIO G-SHOCK G-STEEL Smartphone Link GST-B100D-1A9JF Silver

G-SHOCK continues to evolve in its pursuit of toughness, and the new G-STEEL models break new ground in metal design by fusing different materials. The GST-W310D is a combination of two models, the GST-W310D with a smaller module and the GST-B100D, the first in the series to feature an analogue display with a chronograph, and the GST-B100D is available in a new black and gold color lineup. In order to enhance the color of the dial, a light-shielding solar panel with excellent power generation efficiency is used, and gold is used as an accent. Gold is used for the hour and minute hands, in-dials, indexes and IP treated front screws for a brilliant shine. The GST-W310D is equipped with multi-band 6, which is compatible with six global standard radio waves, and the GST-B100D is equipped with a Bluetooth connection to a smartphone. Interlocking functions via communication enable easy setting and automatic time correction. It is equipped with practical functions for the accurate display of time as a watch. The G-Steel is a new model that embodies the toughness of the G-Steel model with an edgy stainless steel bezel and a wide range of variations, with the addition of gorgeous gold. (This model is GST-B100D-1A9JF.)


Shockproof construction
Tough solar (solar charging system)
Water resistant to 20 atmospheres
Mobile Link function (Bluetooth communication with a compatible mobile phone to link functions)
Dual time (with home time changeover function)
Stopwatch (1 second, 24 hours, with split)
Timer (set unit: 1 minute, maximum setting: 24 hours, measurement in 1 second increments)
Time Alarm
Battery indicator display
The power saving function stops the hands after a certain amount of time in the dark to save electricity.
Date and day display
Fully Automatic Calendar
LED light (with super illuminator and afterglow function)
Operation time without solar power from full charge: Approx. 5 months in function mode, approx. 24 months in power saving mode
When not linked to a smartphone, the watch operates with normal quartz precision (average monthly difference of ±15 seconds).

Bluetooth is a registered trademark of Bluetooth SIG, Inc.
Bluetooth is a registered trademark of Bluetooth SIG, Inc.
Android" and the "Android logo" are trademarks or registered trademarks of Google Inc.
All other company and product names are trademarks or registered trademarks of their respective owners.
GST-B100D has been certified under the Radio Law of Japan.
The smart phone link function depends on the specifications of the mobile phone and the services of the telecommunication carrier in the country where it is used.