G-Shock GM2100RW-1A

G-Shock Casioak Duo Rainbow Brick Analogue - Digital GM-2100 Series Mens Watch GM2100RW-1A. Case size 44.4mm x 11.8mm. Finished in Resin and Stainless Steel with a Bio-based resin band. Mineral Crystal Glass. WR rating of 200m. Quartz - Battery movement. Approximate weight of watch is 70gm.

Unleash vibrant colour and bold design with the G-SHOCK GM-2100RW-1A, a stunning fusion of style and toughness. This watch features a captivating rainbow-coloured brick wall pattern, inspired by the original G-SHOCK design. Utilizing advanced rainbow vapour deposition, the dial and glass showcase a dynamic, shifting effect, changing hues depending on the light.

Stay true to G-SHOCK’s legendary durability with the GM-2100 series, known for its rugged build and resilient spirit. The iridescent brick pattern on the GM-2100 model is achieved through a meticulous combination of silver vapour deposition, laser etching, and rainbow-coloured printing, creating a striking visual effect from every angle.

Crafted for modern fashion and performance, this timepiece features a glass fiber-reinforced resin case and a stainless steel bezel. The bezel undergoes intricate forging, cutting, and polishing techniques, with a mix of hairline and mirror finishes for a refined, high-end look. Additionally, the GM-2100RW-1A is made with eco-friendly, bio-based resin components, helping reduce environmental impact by utilizing renewable organic resources.

Designed with G-SHOCK's signature toughness, the GM-2100RW-1A also boasts a Super Illuminator LED light, ensuring visibility in any lighting condition.

What we love: Choose the G-SHOCK GM-2100RW-1A for an eye-catching accessory that blends innovative design, eco-conscious materials, and unbeatable toughness. Perfect for anyone who wants to push the limits of style and performance.

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.

WARNING - KEEP NEW & USED BATTERIES OUT OF REACH OF CHILDREN. THIS PRODUCT CONTAINS A BUTTON or COIN CELL BATTERY.

Swallowing may lead to serious injury in as little as 2 hours or death, due to chemical burns and potential perforation of the oesophagus.

If you suspect your child has swallowed or inserted a button battery immediately call the 24-hour Poisons Information Centre on 13 11 26 for fast 24/7 expert advice.

Examine all Watches & Clocks received and make sure the battery compartment is correctly secured, e.g. that the screw or other fastener is tightened. Do not use if the compartment is not secure.

Dispose of used button batteries immediately and safely. Flat batteries can still be dangerous.

Button batteries are hazardous. Keep batteries out of reach of children.

Never allow children to replace batteries in any device.

We recommend exhausted batteries be individually wrapped in tape to insulate them from accidental contact and dispose of separately.

• 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.
  

• Click & Collect?
  

  Prefer a quicker pick-up? Our Click & Collect service makes it easy.

  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
  2. Are 100% genuine - manufactured by the named brands, in keeping with their high quality standards.

  The only thing that’s different are the low prices.
  
  

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• Why are StarBuy prices low?

  StarBuy is a low cost discount website that buys items in bulk and offers them at the lowest possible prices. We keep our costs low by automating most back office processes to keep our prices world competitive. We ensure that you benefit by buying quality brands at low prices from StarBuy and come back to save money again and again.