This model is decorated with the utility colours of the G-Steel GST-B300, which uses G-Shock's "Carbon Core Guard Structure" that is constantly evolving in the pursuit of durability. The windscreen is made of sapphire crystal and the bezel is made of carbon, which is characterised by its light weight and high rigidity. It is even more robust. The bezel is decorated with a new pattern created by advances in lamination and processing technology, offering an unprecedented design. Green IP is used for the case and front button, and a urethane strap with a green pattern is used for the strap.
This model is decorated with the utility colours of the G-Steel GST-B300, which uses G-Shock's "Carbon Core Guard Structure" that is constantly evolving in the pursuit of durability. The windscreen is made of sapphire crystal and the bezel is made of carbon, which is characterised by its light weight and high rigidity. It is even more robust. The bezel is decorated with a new pattern created by advances in lamination and processing technology, offering an unprecedented design. Green IP is used for the case and front button, and a urethane strap with a green pattern is used for the strap.
in 3 offers
The lowest price for G-Shock GST-B300XB-1A3ER Watch - G-Steel - Limited Edition right now is $754.50 at eBay.com.au, compared across 3 retailers.
The all-time low was $700.50 on 12 Mar 2026 — today's price is 8% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 30 June 2026.
G-Shock GST-B300XB-1A3ER Watch - G-Steel - Limited Edition
This model is decorated with the utility colours of the G-Steel GST-B300, which uses G-Shock's "Carbon Core Guard Structure" that is constantly evolving in the pursuit of durability. The windscreen is made of sapphire crystal and the bezel is made of carbon, which is characterised by its light weight and high rigidity. It is even more robust. The bezel is decorated with a new pattern created by advances in lamination and processing technology, offering an unprecedented design. Green IP is used for the case and front button, and a urethane strap with a green pattern is used for the strap.
This model is decorated with the utility colours of the G-Steel GST-B300, which uses G-Shock's "Carbon Core Guard Structure" that is constantly evolving in the pursuit of durability. The windscreen is made of sapphire crystal and the bezel is made of carbon, which is characterised by its light weight and high rigidity. It is even more robust. The bezel is decorated with a new pattern created by advances in lamination and processing technology, offering an unprecedented design. Green IP is used for the case and front button, and a urethane strap with a green pattern is used for the strap.
Last updated at 30/06/2026 14:55:22
Casio Gst-b300xb-1a3 Watch G-steel Solar Smartphone Link Men's
Free delivery
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Casio G-Steel GST-B300XB-1A3ER Men's Solar Watch, Black, Plastic, 50mm
Free delivery between 8–14 July
Casio G-Steel GST-B300XB-1A3ER Men's Solar Watch, Bluetooth, Carbon Core
Delivery $14.67
| Watch Style | Sport, Luxury, Military, Smart |
| Clasp type | Buckle |
| Water resistant depth | 20 bars |
| Band Color | Green |
| Band Material | Plastic |
Casio Gst-b300xb-1a3 Watch G-steel Solar Smartphone Link Men's
Free delivery
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!
Casio G-Steel GST-B300XB-1A3ER Men's Solar Watch, Black, Plastic, 50mm
Free delivery between 8–14 July
Casio G-Steel GST-B300XB-1A3ER Men's Solar Watch, Bluetooth, Carbon Core
Delivery $14.67
| Watch Style | Sport, Luxury, Military, Smart |
| Clasp type | Buckle |
| Water resistant depth | 20 bars |
| Band Color | Green |
| Band Material | Plastic |
