











G-Shock
Analog Digital Black Resin Band Watch
GA2100RL-1A
or 4 payments of $37.50
- Repay in 4 installments fortnightly, interest-free.
- The maximum purchase amount is $3,000.
- Learn more about Afterpay
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Extended gift returns & exchanges: order by 31 Dec, return or exchange until 31 Jan 2027. Details













Analog Digital Black Resin Band Watch
or 4 payments of $37.50
- Repay in 4 installments fortnightly, interest-free.
- The maximum purchase amount is $3,000.
- Learn more about Afterpay
Overview
- Case size
- 45.4 mm
- Movement
- Quartz
- Functions
- Alarm
- Date display · World timer +2
The G-Shock GA2100RL-1A men's watch blends iconic toughness with vibrant style, featuring a multicolour dial enhanced by a rainbow vapor-deposited brick pattern that shifts playfully with light.
Crafted with a carbon core guard structure and bio-based black resin band, it delivers durability without sacrificing comfort. This analog-digital timepiece offers precision quartz movement, 200-meter water resistance, and a lightweight 51g profile. Protected by mineral crystal glass, it includes essential functions such as world time, stopwatch, countdown timer, five alarms, and a double LED light for optimal visibility. A bold and expressive accessory, it redefines modern performance in the watches category with a distinctive edge.
Specifications
- Weight
- 51 g
- Case and bezel material
- Carbon / Bio-based resin
- Band
- Bio-based resin band
- Construction
- Shock Resistant / Carbon Core Guard structure
- Power supply and battery life
- Approx. battery life: 3 years on SR726W X 2
- Compatible band size
- 145 to 215 mm
- Other
- Neobrite
- World time
- 31 time zones (48 cities + coordinated universal time), daylight saving on/off
- Case size (L× W× H)
- 48.5 × 45.4 × 11.8 mm
- Glass
- Mineral Glass
- Gender
- Male
- Stopwatch
- Measuring capacity
- Measuring unit
- Measuring modes
- Elapsed time, split time, 1st-2nd place times
- 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
- 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
- Regular timekeeping
- Analog
- 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
- Digital
- Hour, minute, second, pm, month, date
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


