G-Shock
Duo Modern Industrial Black Resin Band Watch
GM2100BM-1A
or 4 payments of $128.75
- Repay in 4 installments fortnightly, interest-free.
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Extended gift returns & exchanges: order by 31 Dec, return or exchange until 31 Jan 2027. Details
Duo Modern Industrial Black Resin Band Watch
or 4 payments of $128.75
- Repay in 4 installments fortnightly, interest-free.
- The maximum purchase amount is $3,000.
- Learn more about Afterpay
Overview
- Case size
- 49.3 mm
- Movement
- Quartz
- Functions
- Shockproof
- Alarm · Triple Calandar Display +1
G-SHOCK's duo GM2100BM-1A offers a streamlined, monochrome statement with a black resin band and a textured metal bezel finished in black ion plating.
The combination of digital GM-5600 style and the analogue-digital GM-2100 reveals G-SHOCK's renowned shock-resistant construction, delivering both rugged durability and refined, modern aesthetics. Subtle red function labels inject a signature accent while the bezel’s open-work design showcases the core protection behind the timepiece. Designed for versatile wear, this compact, high-utility piece pairs a chic industrial silhouette with reliable performance—a timeless choice for a men's watch that reads elegantly on a woman's wrist, while also appealing to those seeking a women's watch aesthetic.
Specifications
- Weight
- 71 g
- Case and bezel material
- Resin / Stainless steel
- Band
- Bio-based resin band
- Construction
- Shock Resistant
- Power supply and battery life
- Approx. battery life: 3 years on SR726W X 2
- Surface treatment
- Black ion plated bezel
- Compatible band size
- 145 to 215 mm
- Other
- Neobrite
- World time
- 31 time zones (48 cities + coordinated universal time), daylight saving on/off
- Stopwatch
- 1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, split time, 1st-2nd place times
- Timer
- Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
- Alarm/hourly time signal
- 5 daily alarms / Hourly time signal
- Light
- Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
- Light color
- LED:White
- Calendar
- Full auto-calendar (to year 2099)
- Mute feature
- Button operation tone on/off
- Accuracy
- Accuracy: ±15 seconds per month
- Other features
- 12/24-hour format Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.) Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) Digital: Hour, minute, second, pm, month, date
- Case size (L× W× H)
- 49.3 × 44.4 × 11.8 mm
- Glass
- Mineral Glass
- Gender
- Unisex
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.
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