From G-Shock, this G-Steel model boasts a new shock-resistant Carbon Core Guard structure. The 51mm case is made of fine resin that incorporates carbon fiber for light weight along with rigidity that is superior to that of resin alone. This material protects the internal module from shock-induced damage. The dual back cover protects the back surface against impact. The case provides a comfortable fit, even though the watch is designed with a wide face. Equipped with Smartphone Linking for ease of setting approximately 300 world time cities, alarms, timer, time swapping, phone finder, and hand alignment correction. The watch comes with a black rubber strap that secures in place with a buckle clasp and is water-resistant to 200m.
From G-Shock, this G-Steel model boasts a new shock-resistant Carbon Core Guard structure. The 51mm case is made of fine resin that incorporates carbon fiber for light weight along with rigidity that is superior to that of resin alone. This material protects the internal module from shock-induced damage. The dual back cover protects the back surface against impact. The case provides a comfortable fit, even though the watch is designed with a wide face. Equipped with Smartphone Linking for ease of setting approximately 300 world time cities, alarms, timer, time swapping, phone finder, and hand alignment correction. The watch comes with a black rubber strap that secures in place with a buckle clasp and is water-resistant to 200m.
in 6 offers
The lowest price for Casio G-Shock GSTB300-1A G-Steel Watch right now is $453.40 at eBay.com.au, compared across 5 retailers.
The all-time low was $205.00 on 8 June 2026 — today's price is 121% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Casio G-Shock GSTB300-1A G-Steel Watch
From G-Shock, this G-Steel model boasts a new shock-resistant Carbon Core Guard structure. The 51mm case is made of fine resin that incorporates carbon fiber for light weight along with rigidity that is superior to that of resin alone. This material protects the internal module from shock-induced damage. The dual back cover protects the back surface against impact. The case provides a comfortable fit, even though the watch is designed with a wide face. Equipped with Smartphone Linking for ease of setting approximately 300 world time cities, alarms, timer, time swapping, phone finder, and hand alignment correction. The watch comes with a black rubber strap that secures in place with a buckle clasp and is water-resistant to 200m.
From G-Shock, this G-Steel model boasts a new shock-resistant Carbon Core Guard structure. The 51mm case is made of fine resin that incorporates carbon fiber for light weight along with rigidity that is superior to that of resin alone. This material protects the internal module from shock-induced damage. The dual back cover protects the back surface against impact. The case provides a comfortable fit, even though the watch is designed with a wide face. Equipped with Smartphone Linking for ease of setting approximately 300 world time cities, alarms, timer, time swapping, phone finder, and hand alignment correction. The watch comes with a black rubber strap that secures in place with a buckle clasp and is water-resistant to 200m.
Prices last updated 4 Nov 2026.
Last updated at 04/11/2026 09:56:37
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| Brand | Casio |
| Oversized | Yes |
| Style | Bracelet |
| Chronograph | Yes |
| Smartwatch | Yes |
Casio Sheen Shw-5300pgl-7ajf Radio Solar Black Leather R8041532
Delivery $10.59
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
GSTB300-1A
Free delivery between 9–17 Nov
G-shock G-steel 'black' In Blue
Delivery $63
CASIO G-Shock G-Steel 'Black' GST-B300-1A US F
Delivery $60
Casio G-SHOCK G-STEEL Carbon Core Guard Solar Men's Watch - GSTB300-1A
Free delivery between 6–11 Nov
| Brand | Casio |
| Oversized | Yes |
| Style | Bracelet |
| Chronograph | Yes |
| Smartwatch | Yes |
