











G-Shock
Solar CasiOak Silver and Black Full Metal Bluetooth
GMB2100BT-1A
or 4 payments of $350.75
- Repay in 4 installments fortnightly, interest-free.
- The maximum purchase amount is $3,000.
- Learn more about Afterpay
Please complete the form below to submit a price match request. Kindly include a link to the website where you found the item at a lower price.
*Note: We strive to match all eligible price requests; however, price matching is not guaranteed.
Extended gift returns & exchanges: order by 31 Dec, return or exchange until 31 Jan 2027. Details













Solar CasiOak Silver and Black Full Metal Bluetooth
or 4 payments of $350.75
- Repay in 4 installments fortnightly, interest-free.
- The maximum purchase amount is $3,000.
- Learn more about Afterpay
Overview
- Size
- 44 mm
- Strap
- Stainless Steel
- Silver
- Dial colour
- Black
A collection of full-metal descendants of the first-ever G-SHOCK — introducing the GM-B2100 with a black bezel highlighting their iconic form.
The striking two-tone black-on-silver color scheme projects G-SHOCK toughness in a model sure to suit your personal style. The top bezel of the GM-B2100BT is treated to a hairline finish, exuding the premium elegance of sophisticated metal texture. Indexes finished in silver-colored vapor deposition enhance visibility and add a beautiful contrast with the dial. Crafted from stainless steel, the bezel undergoes meticulous processes of forging, cutting, and polishing to achieve an exquisite finish of depth and dimension. To achieve the same original G-SHOCK shock-resistant structure in a full-metal timepiece, buffering components made of fine resin are inserted between the stainless-steel bezel and case. And dimpling is applied to metal band pieces to reproduce the look of the very first G-SHOCK resin band design. The stainless-steel case of the GM-B2100BT features the same screw-lock construction as the original to ensure a tight seal. And the fact that the watch is crafted at Yamagata Casio, the “mother factory” where the first ever G-SHOCK was made, brings the whole design full circle.
Specifications
- Gender
- Male
- Band type
- Silver Stainless Steel
- Warranty
- 2 Years
Built not to break

A module that floats
Inside a hollow case, the module (the heart of the watch) seems to float, so knocks from outside are softened before they reach it. The idea came from watching children play with a rubber ball.
Tough Solar
A thin, film-like solar panel is fitted into the dial around the display, and it turns even weak light, such as from fluorescent lamps, into power.

2-year warranty
Every G-SHOCK watch from Watch Direct comes with a 2-year warranty from Shriro Australia, Casio’s exclusive Australian distributor.
Watch Direct is an authorised G-SHOCK retailer, trading since 2011.

About G-SHOCK

G-SHOCK began with a dropped watch. Casio designer Kikuo Ibe saw a watch break when it fell, and proposed “a durable watch that would not break even if dropped”. The project set itself the “Triple 10” goal: survive a 10-metre drop, resist water to 10 bar and run for 10 years on one battery. The first G-SHOCK, the DW-5000C, arrived in 1983.
Shop all G-SHOCK
Reviews
Shipping & Returns
Free Shipping Anywhere in Australia
- Get Your Order Shipped in Record Time - Most Orders Sent Within 24 Hours!
- Efficient Same Day Delivery in Sydney - Calculated at Checkout
- Signature on Delivery is included on all shipments within Australia.
- DHL Express is available for fast and secure international shipments.
View our Shipping Page for More Information
Returns Policy
Holiday gift returns: orders placed 1 November to 31 December 2026 can be returned or exchanged until 31 January 2027.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
View our Returns Page for More Information


