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G-Shock G-STEEL GST-B100 with Bluetooth and Tough Solar

G-Shock G-Steel GST-B100 GST-B100-1A GST-B100D-1A GST-B100X-1A

Casio just announced the all-new G-Shock G-STEEL GST-B100 featuring Tough Solar power and Bluetooth connectivity. Like the other G-STEEL models, the GST-B100 has a layered guard structure for superior shock resistance but is 2 millimeters slimmer than the original GST-S100. The launch models include the GST-B100-1A with resin band, the GST-B100D-1A with stainless steel band, and the special edition GST-B100X-1A with a carbon fiber bezel and resin band.

The GST-B100 is the first fully analog G-STEEL model and has a subdial for dual dial world time. Another distinguishing feature is the unique dial indicator at the nine o’clock position which resembles the turbine blades of a jet engine. This dial rotates to graphically indicate elapsed stopwatch time, alarm setting, or battery level. The Connected Engine Module supports a Bluetooth connection to a smartphone to automatically adjust the time with internet servers, or to use a smartphone app to adjust the alarm and world time settings. A phone finder function is also available. The GST-B100 measures 58.1 x 53.8 x 14.1 mm, which is similar to the original GST-S100 (59.1 x 52.4 x 16.1) but significantly slimmer. The slimmer size is the result of the shock-resistant resin layer being incorporated into the case.

The special edition GST-B100X-1A combines Torayca carbon fiber and Nanoalloy resin technology for a striking bezel design and also has a sapphire crystal.

This exciting new release for G-Shock is another affirmation of the brand’s dedication to technological innovation. This is the third G-Shock watch featuring Tough Solar and Bluetooth connectivity (behind the GPW-2000 Gravitymaster) and MRG-G2000), and it looks like the Connected Engine Module may become a more common feature in future models.

Update: The GST-B100-1A, GST-B100D-1A, and GST-B100X-1A are September 2017 releases in Asia. G-Shock Japan also announced the GST-B100-1AJF (¥50,000 JPY), GST-B100D-1AJF (¥55,000 JPY), and GST-B100X-1AJF (¥85,000 JPY) for September 2017, as well as the silver and gold GST-B100D-1A9JF (¥55,000).

Update 2: Casio America announced the GSTB100-1A ($320), GSTB100D-1A ($400), and GSTB100X-1A ($700) for an October 2017 release.

Update 3: The silver and gold GST-B100D-1A9 is an October 2017 release in Asia. The GSTB100D-1A9 will also be released in North America in November 2017 with a list price of $400 USD.

GST-B100-1A: Stainless steel bezel with resin band.

G-Shock GST-B100-1A Bluetooth and Tough Solar

GST-B100-1A on Amazon GSTB100-1A at Reeds GST-B100-1A on eBay

GST-B100D-1A: Stainless steel bezel with stainless steel band.

G-Shock GST-B100D-1A Bluetooth and Tough Solar

GST-B100D-1A on Amazon GSTB100D-1A at Reeds GST-B100D-1A on eBay

GST-B100X-1A: Carbon fiber and resin bezel with resin band. Special features include a sapphire crystal with anti-reflective coating and stainless steel band keeper.

G-Shock GST-B100X-1A Bluetooth and Tough Solar

GST-B100X-1A on Amazon GSTB100X-1A at Reeds GST-B100X-1A on eBay

GST-B100D-1A9: Stainless steel bezel and stainless steel band.

G-Shock GST-B100D-1A9JF

GST-B100D-1A9 on Amazon GST-B100D-1A9 on eBay

GST-B100 Specifications:

Shock-Resistant
200-Meter Water Resistance
Bluetooth Low Energy (Signal Range: 2 Meters)
Dual Time (Home City Swapping)
Stopwatch: 1 second; Measuring Capacity: 23:59’59; Modes: elapsed time, split time
1 Daily Alarm
Mobile Link Functions: world time (over 300 cities), one-touch time adjustment, auto time adjustment (4 times a day), daylight saving time auto switching, alarm setting, timer setting
Full Auto-Calendar
Battery Level Indicator
LED light (super illuminator and afterglow)
Tough Solar power system
Continuous Operation: About 24 months with the power-saving function ON after full charge
58.1 x 53.8 x 14.1 mm
Weight: GST-B100D: 185g, GST-B100/GST-B100X: 101g

G-Shock GST-B100 Promotional Video:

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Disclosure: G-Central is independently managed by fans and is not an official G-Shock site. For official support, visit world.casio.com. Please follow your country's official sites for more release information. G-Central may earn a commission on purchases from our links to Amazon, eBay, and Reeds Jewelers.

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escaped monkey
escaped monkey
4 years ago

That carbon fiber model is making me hot. I want.

Vova s
Vova s
4 years ago

May turbine blades rotate constantly or they rotate only with some functions?

G-Central
G-Central
4 years ago
Reply to  Vova s

I believe just for certain functions, see the video we just added.

Gouldelocks
Gouldelocks
3 years ago

Where does the GST-B100X-1AER fit in the family and what does it offer over and above GST-B100X-1A

G-Central
G-Central
3 years ago
Reply to  Gouldelocks

It’s the same watch, “ER” at the end just means it is meant to be sold in the European market.

Gouldelocks
Gouldelocks
3 years ago
Reply to  G-Central

Many thanks

John Card
John Card
2 years ago

The rotating blades feature – what colour indicates a full charge? is it red or black?

Thanks in advance!

G-Central
G-Central
2 years ago
Reply to  John Card

I’m guessing black.

Renante Tapat
Renante Tapat
2 years ago

When they will release a black version of GST B100D 1A9? I like it with black version and a gold accent to it.

Paul Cottingham
Paul Cottingham
1 year ago

Please can you tell me b100tfb-1aer gold tornado how many limited to many thanks.