G-Shock GBM2100A-1A2

The G-Shock GBM2100A-1A2 brings serious watchmaking substance to the most talked-about silhouette in modern G-Shock. Part of the G-Steel GBM-2100 line, this men's solar-powered analogue-digital watch inherits the octagonal bezel design that traces directly back to the first-ever G-Shock of 1983 — the DW-5000C, engineer Kikuo Ibe's answer to the challenge of building an unbreakable watch — and dresses it in forged stainless steel with a striking metallic blue dial.

The bezel is where the Japanese manufacturing story shows. Crafted through a meticulous process of forging, cutting and polishing, it carries a circular hairline finish across the top surface and mirror polish on the sides, catching light like a watch well beyond its price bracket. The dial beneath is equally considered: a horizontal grid pattern applied with transparent printing adds depth and dimensionality, metallic blue vapour deposition delivers the colour, and a phosphorescent Neobrite finish on the hands and indices keeps everything readable after dark. The inner case is glass fibre-reinforced resin engineered to G-Shock's shock-resistant standard with 200-metre water resistance, and the band is made from bio-based resin — a forward-thinking material choice that reduces environmental impact without compromising toughness.

The engine makes daily ownership effortless. Tough Solar charging means the battery replenishes from any light and never needs replacing, while Bluetooth connectivity to the Casio Watches app adjusts the time automatically and puts around 300 world time cities, reminders and a phone finder at your fingertips. Double Super Illuminator LED lights illuminate both the face and digital display, and a clever hand-shift feature swings the hands aside for a clear view of the LCD. A 1/100-second stopwatch, countdown timer, five daily alarms and full auto-calendar to 2099 complete the package — all in a slim 11.9mm profile weighing just 72 grams.

What we love: This is the smart money's 2100 — the forged steel bezel and vapour-deposited blue dial deliver most of the Full Metal experience at half the price, with solar power and Bluetooth precision the resin models can't match. It moves from the job site to the boardroom without missing a step, and you'll never set the time or change a battery again. Covered by a 2-year warranty. Product code: GBM2100A-1A2.

Ships in 1-3 Business Days from Sydney with Australia Post Express. Sydney customers can pick up on the same day from our Alexandria showroom after placing the order by choosing Click & Collect as the delivery option.

2 year Australian warranty from Shriro Australia. StarBuy are Authorised online and instore stockists of Casio G-Shock Watches. All Casio G-Shock Watches are shipped with local and an international manufacturers warranty and in G-Shock original packaging.

• How and when will my StarBuy order be shipped?
  We ship all orders via Australia Post Express for fast and reliable delivery. We aim to dispatch every order as quickly as possible—typically within 1–3 business days. You'll receive a confirmation email with tracking details as soon as your order ships.
  

• Can StarBuy guarantee delivery dates?
  While Australia Post Express is generally reliable, their delivery dates are estimates only and may vary, especially during busy periods. We appreciate your understanding if your parcel takes a little longer to arrive.
  

• Will I need to sign for my order?
  Yes, a signature is required upon delivery. If no one is home, we recommend using a work address. Australia Post may offer contactless delivery—in those cases, we follow their current safety protocols. Risk and ownership transfer to the recipient upon delivery.
  

• What if I am not home when my order arrives?
  If no one is available to sign, Australia Post will leave a card with details on how to collect your parcel from the closest authorised Australia Post Office. You’ll need to present a photo ID at the post office to pick it up. If you’ve authorised a Safe Drop with Australia Post previously, they’ll follow your existing instructions.
  

• Will I get a Shipping Notification?
  Absolutely! As soon as your order is on its way, you’ll receive an email with tracking details. We kindly ask for your patience—tracking updates may take up to 3 business days after ordering.
  

• What are your shipping charges?
  We offer free shipping Australia-wide with Australia Post Express. For approved brands shipped to New Zealand, a $10 flat fee will be added to your total at checkout. Approved parcels to NZ are shipped within the Australia Post / NZ Post network.
  

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  Pickup Location:
  StarBuy
  Suite 23, 112 McEvoy Street
  Alexandria NSW 2015 

  Hours:
  Monday–Friday: 10am–5pm
  Saturday: 9am–12pm  

  How it works - Your order will be ready for pickup within an hour during business hours (unless otherwise notified). If someone else is collecting on your behalf, just email us their name—they’ll need to show ID at pickup.

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  1. Are brand new
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  The only thing that’s different are the low prices.
  
  

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