This Limited Edition G-SHOCK GST-B300 men's watch comes as a set with three bands- stainless steel, brown cloth, and black polyurethane. This series has been developed with a new Carbon Core Guard structure, which protects the module with a carbon case. Highly durable carbon fiber-reinforced resin is added not only to the center case, but also to the front and side button guards, providing even stronger resistance to shocks. The men's watch features automatic time adjustment via Bluetooth when paired with a dedicated smartphone app, world time setting for over 300 cities, as well as various alarm and countdown timer settings. It is also equipped with other practical functions such as the solar charging system developed by Casio, and a high-luminosity full auto double LED light.
This Limited Edition G-SHOCK GST-B300 men's watch comes as a set with three bands- stainless steel, brown cloth, and black polyurethane. This series has been developed with a new Carbon Core Guard structure, which protects the module with a carbon case. Highly durable carbon fiber-reinforced resin is added not only to the center case, but also to the front and side button guards, providing even stronger resistance to shocks. The men's watch features automatic time adjustment via Bluetooth when paired with a dedicated smartphone app, world time setting for over 300 cities, as well as various alarm and countdown timer settings. It is also equipped with other practical functions such as the solar charging system developed by Casio, and a high-luminosity full auto double LED light.
in 3 offers
The lowest price for G-ShockCasio G-Shock GSTB300E-5A G-Steel Solar Powered Bluetooth Stainless Band Watch right now is $507.87 at banzaihobby.com, compared across 3 retailers.
The all-time low was $383.88 on 22 June 2026 — today's price is 32% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 23 July 2026.
G-ShockCasio G-Shock GSTB300E-5A G-Steel Solar Powered Bluetooth Stainless Band Watch
This Limited Edition G-SHOCK GST-B300 men's watch comes as a set with three bands- stainless steel, brown cloth, and black polyurethane. This series has been developed with a new Carbon Core Guard structure, which protects the module with a carbon case. Highly durable carbon fiber-reinforced resin is added not only to the center case, but also to the front and side button guards, providing even stronger resistance to shocks. The men's watch features automatic time adjustment via Bluetooth when paired with a dedicated smartphone app, world time setting for over 300 cities, as well as various alarm and countdown timer settings. It is also equipped with other practical functions such as the solar charging system developed by Casio, and a high-luminosity full auto double LED light.
This Limited Edition G-SHOCK GST-B300 men's watch comes as a set with three bands- stainless steel, brown cloth, and black polyurethane. This series has been developed with a new Carbon Core Guard structure, which protects the module with a carbon case. Highly durable carbon fiber-reinforced resin is added not only to the center case, but also to the front and side button guards, providing even stronger resistance to shocks. The men's watch features automatic time adjustment via Bluetooth when paired with a dedicated smartphone app, world time setting for over 300 cities, as well as various alarm and countdown timer settings. It is also equipped with other practical functions such as the solar charging system developed by Casio, and a high-luminosity full auto double LED light.
Last updated at 23/07/2026 05:24:06
CASIO Solar G-SHOCK GST-B300E-5AJR
Delivery $38.45
Casio G-shock G-steel Carbon Core Guard Multi Band Men's Watch
Free delivery
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G-shock G-steel 'silver'
Delivery $306
originally posted on ebay.com
big Gshock fan. I already have 12. this one is great value with the 3 bracelet, very versatile. happy to have it.
| Batteries | 1 LR44 batteries required. (included) |
| Product dimensions | 20.32 x 12.7 x 12.7 cm; 226.8 Grams |
| Watch movement | Japanese Quartz |
| Display type | Digital |
| Dial colour | Black |
CASIO Solar G-SHOCK GST-B300E-5AJR
Delivery $38.45
Casio G-shock G-steel Carbon Core Guard Multi Band Men's Watch
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!
G-shock G-steel 'silver'
Delivery $306
big Gshock fan. I already have 12. this one is great value with the 3 bracelet, very versatile. happy to have it.
| Batteries | 1 LR44 batteries required. (included) |
| Product dimensions | 20.32 x 12.7 x 12.7 cm; 226.8 Grams |
| Watch movement | Japanese Quartz |
| Display type | Digital |
| Dial colour | Black |
