G-shock

G-Shock GBM2100A-1A3 Metal Covered Bluetooth 'CasiOak'

RRP $599 $428 SAVE $171
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  • 30 day returns
Description
Since 1983, G-SHOCK's line of robust timepieces has been consistently refined to achieve unmatched durability. The latest addition to this legacy is the octagonal GBM-2100 models, which incorporate Bluetooth® and solar features into the GM-2100 design. Crafted from bio-based resin, the bands prioritize both longevity and eco-friendliness. With their versatile design, these models effortlessly shift between casual and professional settings. Marking a notable advancement in functionality within the iconic 2100 series, the new GBM-2100 models blend durability with aesthetic charm.

- Module No. 5729
- 49.3 x 44.4 x 11.9mm Case Size
- 72g Weight
- Shock resistant (G-SHOCK)
- Tough Solar (Solar powered)
- Double LED light
- Mobile link (Wireless linking using Bluetooth®)
- Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents)
- World time: 38 time zones (38 cities + coordinated universal time), auto summer time (DST) switching, home city/world time city swapping, city code display, city name display, daylight saving on/off
- Stopwatch
- Countdown Timer
- 5 Daily Alarms
- Hourly Time Signal
- Battery Level Indicator
- Power Saving (display goes blank to save power when the watch is left in the dark)
- Full auto-calendar (to year 2099)
- 12/24-hour format
- Button operation tone on/off
- Date/month display swapping
- Day display (days of the week selectable in six languages)
- Regular timekeeping
*Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level)
*Digital: Hour, minute, second, pm, month, date, day
- Accuracy: ±15 seconds per month (with no mobile link function)
- 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)
Specifications
  • Gender: Mens
  • Model Number: GBM2100A-1A3
  • Watch case colour: Silver
  • Watch dial colour: Green
  • Watch strap colour: Black
  • Watch strap material: Resin
  • Watch type: Alarm, Digital, Solar
  • Water resistant: 200 Metres
Shipping & Returns
Estimated Delivery Within Australia

Free Shipping On Orders Over $69

Standard Postage after dispatch time - $9.95

Express Postage after dispatch time - $13.95

View estimated delivery, once dispatched, within Australia.

Returns

Online customers can return their purchase within 30 days of delivery. This excludes items that have been worn, scratched, damaged, made to order or altered in any way.

Learn more about our returns policy.

Wear Now, Pay Later
  • 5 stars: 3 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
D
David R (Sydney, AU)
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The Ultimate Low‑Maintenance Everyday Watch

The G‑Steel GBM‑2100A‑1A2 is one of those rare watches that genuinely earns the phrase “effortless ownership.” It’s not just low‑maintenance — it’s almost no‑maintenance, and that’s the heart of its appeal.

Set‑and‑Forget? Not Even That.
Most solar watches are “set and forget,” but this one goes a step further. Once it’s paired with your phone, you don’t even have to set it the first time.

No fiddling with the hands
No worrying about daylight savings
No drift over time

It quietly syncs itself in the background, always correct, always ready.
The Find My Phone feature is surprisingly useful too. Press a button on the watch and your phone emits a unique alert tone — even if it’s on silent — as long as the battery isn’t flat. It’s the kind of practical, real‑world feature you end up using more than you expect.

Being a G‑Shock, durability is a given. But the G‑Steel line adds something extra:

A steel case that makes it more office‑appropriate
A resin strap that keeps it comfortable and lightweight
The familiar “CasiOak” industrial geometry that gives it a modern, architectural presence
It’s a watch that feels equally at home in a meeting room or on a weekend walk — rugged but not shouty.

Casio’s Tough Solar system is one of the most reliable in the world. It charges from almost any light source and holds power for months. Combined with the ultra‑efficient module, it’s the kind of watch you can wear daily, ignore completely, and trust absolutely.

A Watch for People Who Want Zero Fuss
This is the perfect watch for someone who wants:
accuracy without effort
durability without bulk
a modern, industrial aesthetic
a watch that simply works

It’s not trying to be a luxury piece or a heritage object. It’s a tool — but a beautifully executed one

A
Adi672 (Sydney, AU)
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Great experience

I had a great experience with purchasing this watch from Watch Depot. It arrived much quicker than expected and the sales team was very supportive to answer any queries.

M
Mathew Dean (Melbourne, AU)
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Great lil watch

I am loving this watch.
User friendly, looks good, the blue tooth is super intuitive.

Buttons nice and big. And the light makes it clear without being bright.