







G-Shock
Analog Digital DUO 2100 Mid Size Black Resin Band Watch
GMAS2100-1A
or 4 payments of $42.25
- Repay in 4 installments fortnightly, interest-free.
- The maximum purchase amount is $3,000.
- Learn more about Afterpay
Pickup available at Sydney Showroom
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Analog Digital DUO 2100 Mid Size Black Resin Band Watch
Sydney Showroom
19/76b Edinburgh Road
Marrickville NSW 2204
Australia
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Analog Digital DUO 2100 Mid Size Black Resin Band Watch
or 4 payments of $42.25
- Repay in 4 installments fortnightly, interest-free.
- The maximum purchase amount is $3,000.
- Learn more about Afterpay
Overview
- Case size
- 46.2 mm
- Movement
- Quartz
- Functions
- Alarm
- Date display · World timer +4
The G-Shock Analog Digital DUO 2100 Mid Size Watch GMAS2100-1A offers a sleek reinterpretation of classic toughness with refined modern style.
Designed with a matte black resin band and a distinctive octagonal case, this women's watch is crafted from durable carbon and resin, making it both lightweight and remarkably shock-resistant. The minimalist black dial features rose gold-tone metallic bar indices and dual analog-digital displays for a sophisticated, functional aesthetic. Water-resistant up to 200 meters and equipped with features like world time, multiple alarms, stopwatch, countdown timer, and LED illumination, it’s the thinnest G-Shock in the collection without compromise. Mineral crystal glass and Neobrite luminous hands complete its polished exterior, making it ideal for everyday versatility and enduring appeal.
Specifications
- Case size (L× W× H)
- 46.2 × 42.9 × 11.2 mm
- Case and bezel material
- Carbon / Resin
- Band
- Resin Band
- Gender
- Female
- Construction
- Shock Resistant
- Carbon Core Guard structure
- Power supply and battery life
- Approx. battery life: 3 years on SR726W X 2
- Glass
- Mineral Glass
- 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
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
You have 30 days from the date of purchase to return your item.
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


