G-Shock
DUO Carbon Core Connected Solar Mens Watch
GSTB400-1A
or 4 payments of $187.50
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DUO Carbon Core Connected Solar Mens Watch
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Extended gift returns & exchanges: order by 31 Dec, return or exchange until 31 Jan 2027. Details
DUO Carbon Core Connected Solar Mens Watch
or 4 payments of $187.50
- Repay in 4 installments fortnightly, interest-free.
- The maximum purchase amount is $3,000.
- Learn more about Afterpay
DUO Carbon Core Connected Solar Mens Watch
Register to receive a notification when this item comes back in stock.
Overview
- Size
- 46.6 mm
- Strap
- Resin
- Black
- Dial colour
- Black
Refined for modern performance, the G-Shock DUO Carbon Core Connected Solar men’s watch blends bold design with cutting-edge technology.
Encased in a resilient resin and stainless steel structure, this timepiece features an ultra-thin 12.9mm profile without sacrificing durability. The black resin band and silver-toned bezel frame a multi-layered black dial with Neobrite accents and digital displays, showcasing both rugged appeal and practical clarity. Powered by solar energy and fortified with shock resistance and 200-meter water resistance, it offers Bluetooth connectivity, world time across 38 time zones, and a full suite of functions including alarms, stopwatch, countdown timer, and dual LED illumination. Ideal for casual and smart settings, this men’s watch redefines versatility with refined toughness and sleek sophistication.
Specifications
- Weight
- 80 g
- Construction
- Shock Resistant; Carbon Core Guard structure
- Timer Countdown timer Measuring unit
- 1 second Countdown range: 60 minutes Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments)
- Alarm/hourly time signal 5 daily alarms
- Hourly time signal
- Light color LED
- White
- Run time Approx. battery operating time
- 7 months on rechargeable battery (operation period with normal use without exposure to light after charge) 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
- Accuracy Accuracy
- ±15 seconds per month (with no mobile link function)
- Other features
- 12/24-hour format; Date/month display swapping; Day display (days of the week selectable in six languages); 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 (battery level, mode) Digital: Hour, minute, second, pm, month, date, day
- Gender
- Male
- Band type
- Black Resin
- Features
- Case and bezel material Case / bezel material: Resin / Stainless steel
- Band Resin Band
- Power supply and battery life Tough Solar (Solar powered)
- Smartphone Link feature Mobile link (Wireless linking using Bluetooth®)
- Apps G-SHOCK Connected Exterior
- Glass Mineral Glass
- Other Neobrite
- World time World time 38 time zones (38 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping
- 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, lap/split time
- 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)
- Calendar Full auto-calendar (to year 2099)
- Mute feature Button operation tone on/off
- Energy saving feature Power Saving (display goes blank to save power when the watch is left in the dark)
- Battery display/alert Battery level indicator
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
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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.
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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