Casio Men's 'G-Steel by G-Shock' Quartz Solar Bluetooth Connected Resin Dress Watch, Color: Black (Model: GST-B100-1ACR)

Items Description

The Casio G-Shock GST-B100-1A is an analog chronograph watch designed for users who need a durable timepiece with solar charging and smartphone connectivity. Part of the G-STEEL line, it combines a forged stainless-steel case with a layered bezel that pairs metal and resin for structural protection. The watch is built for daily wear in demanding environments, from job sites to outdoor travel, and its black-on-black colorway keeps the profile understated enough for business casual settings.

 

At the centre of the design is a dual-layer bezel: a metal layer sits above a resin layer, and six front screws fasten the assembly to the stainless-steel case. The urethane band is shaped with a motif drawn from heavy jet engine blades, a detail that runs through the GST-B100 series. Casio pairs this construction with Tough Solar charging and Bluetooth linking, so the watch handles timekeeping and connected functions without a battery swap.

 

Key Advantages of the Casio Men's 'G-Steel by G-Shock' Quartz Solar Bluetooth Connected Resin Dress Watch, Color: Black (Model: GST-B100-1ACR)

 

1. Tough Solar Power System

The GST-B100-1A runs on Casio's Tough Solar system, which converts light from both natural and artificial sources into power for the rechargeable cell. This removes the need for scheduled battery replacement and keeps the watch running as long as it is exposed to light.

 

• Light Charging: Charges from sunlight, window light, and standard indoor lighting.
• Battery Level Indicator: The dial shows remaining charge so the wearer knows when to top up.
• Power Saving: The display blanks automatically in the dark to conserve stored energy.

 

2. Bluetooth Smartphone Link

Through the G-Shock Connected app, the watch pairs with a smartphone over Bluetooth to handle time correction, alarm setup, and world time selection. This is the practical advantage for frequent travellers: the watch syncs to the correct local time without manual adjustment.

 

• Auto Time Correction: The watch updates to the phone's time signal several times a day.
• Dual Dial World Time: A second dial shows a selected world time zone alongside local time.
• Phone Finder: A button press triggers the paired phone to sound an alert.

 

3. Analog Chronograph With Layered Construction

The chronograph is analog, with central hands and subdials positioned for quick reading during timing tasks. Casio builds the case from forged stainless steel rather than stamped metal, and the two-layer bezel places a metal layer over a resin layer to absorb impact at the rim.

 

• Six Front Screws: Fasten the bezel to the case, reinforcing the front of the watch.
• Analog Display: Hands and subdials remain readable in low light and bright daylight alike.
• Shock Resistant: The core G-Shock construction withstands drops and knocks.

 

4. 200 Metre Water Resistance

The watch carries a 200 metre water resistance rating, which covers swimming, snorkelling, and surface water sports. This rating, combined with the shock-resistant build, means the watch can be worn through most daily and outdoor activity without removal.

 

5. Black Colorway and Jet Engine Blade Band

The black finish on the case and band gives the watch a low-glare, uniform appearance that suits both work and casual wear. The urethane band echoes the shape of heavy jet engine blades, linking the visual design to the durability theme of the G-STEEL line.

 

• Urethane Band: Resists sweat, water, and perspiration build-up better than leather.
• Blacked-Out Finish: Keeps the watch visually restrained in formal or office settings.
• Jet Engine Blade Motif: A textured pattern that runs across the band of this model.

 

Overall, the Casio G-Shock GST-B100-1A suits users who want an analog chronograph with solar charging and Bluetooth timekeeping in a single piece. It is a practical choice for commuters, outdoor workers, and travellers who need a watch that handles water, impact, and time zone changes without regular maintenance. For those who prefer an analog dial over a digital readout, this model delivers the core G-Shock durability in a form that fits everyday wear.

Specifications of Casio Men's 'G-Steel by G-Shock' Quartz Solar Bluetooth Connected Resin Dress Watch, Color: Black (Model: GST-B100-1ACR)

Brand Name	Casio
Model number	GST-B100-1ACR
Part Number	GST-B100-1ACR
Item Shape	Round
Dial window material type	Mineral
Clasp	Buckle
Case material	Resin
Case diameter	48.5 millimeters
Case Thickness	14.5 millimeters
Band Material	Plastic
Band width	22.6 millimeters
Band Color	Black
Dial color	Black
Bezel material	Resin
Bezel function	Stationary
Item weight	3.6 Ounces
Movement	Quartz
Water resistant depth	660 Feet
Display Type	Analog

Prev:  Citizen Men's Eco-Drive Promaster Air Nighthawk Watch, Black Leather Strap, Black Dial, Dual Time (Model: BJ7137-07E)     Next: Casio Men's PRO TREK Stainless Steel Japanese-Quartz Watch with Resin Strap, Black, 23.77 (Model: PRG-600-1CR)

Specifications
[Brand Name ]	Casio
[Model number ]	GST-B100-1ACR
[Part Number ]	GST-B100-1ACR
[Item Shape ]	Round
[ Dial window material type ]	Mineral
[Clasp ]	Buckle
[Case material ]	Resin
[Case diameter ]	48.5 millimeters
[Case Thickness ]	14.5 millimeters
[Band Material ]	Plastic
[Band width ]	22.6 millimeters
[Band Color ]	Black
[Dial color ]	Black
[Bezel material ]	Resin
[ Bezel function ]	Stationary
[Item weight ]	3.6 Ounces
[ Movement ]	Quartz
[ Water resistant depth ]	660 Feet
[Display Type ]	Analog

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