Shock Resistant 200-meter water resistance Bluetooth smartphone link Solar Powered Introducing the GSTB300B-1A, the latest in the new rugged style of G-STEEL models that feature Carbon Core Guard structure. The new GSTB300s adopt tough G-SHOCK styling with a disk indicator at 6 o’clock that shows the current mode and charge level, and a front button that completes the overall rugged look. The disk, a round graphic digital display between 1 and 2 o'clock, and a digital display as 12 o'clock add to both functionality and looks. The new GSTB300B-1A model comes in a black case and resin band accompanied with striking Gold IP accented button, screws and buckle.
Shock Resistant 200-meter water resistance Bluetooth smartphone link Solar Powered Introducing the GSTB300B-1A, the latest in the new rugged style of G-STEEL models that feature Carbon Core Guard structure. The new GSTB300s adopt tough G-SHOCK styling with a disk indicator at 6 o’clock that shows the current mode and charge level, and a front button that completes the overall rugged look. The disk, a round graphic digital display between 1 and 2 o'clock, and a digital display as 12 o'clock add to both functionality and looks. The new GSTB300B-1A model comes in a black case and resin band accompanied with striking Gold IP accented button, screws and buckle.
Shock Resistant 200-meter water resistance Bluetooth smartphone link Solar Powered Introducing the GSTB300B-1A, the latest in the new rugged style of G-STEEL models that feature Carbon Core Guard structure. The new GSTB300s adopt tough G-SHOCK styling with a disk indicator at 6 o’clock that shows the current mode and charge level, and a front button that completes the overall rugged look. The disk, a round graphic digital display between 1 and 2 o'clock, and a digital display as 12 o'clock add to both functionality and looks. The new GSTB300B-1A model comes in a black case and resin band accompanied with striking Gold IP accented button, screws and buckle.
Shock Resistant 200-meter water resistance Bluetooth smartphone link Solar Powered Introducing the GSTB300B-1A, the latest in the new rugged style of G-STEEL models that feature Carbon Core Guard structure. The new GSTB300s adopt tough G-SHOCK styling with a disk indicator at 6 o’clock that shows the current mode and charge level, and a front button that completes the overall rugged look. The disk, a round graphic digital display between 1 and 2 o'clock, and a digital display as 12 o'clock add to both functionality and looks. The new GSTB300B-1A model comes in a black case and resin band accompanied with striking Gold IP accented button, screws and buckle.
Last updated at 07/23/2026 05:22:35
Casio G-shock Gst-b300 Series Black Resin Watch Gstb300b-1a
Delivery $140.97
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Casio G-shock G-steel Gst-b300b-1ajf Black Digital Carbon Core Men
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-B300B-1AJF Mens Wristwatch, Solar Smartphone Link, Black, blackgold, Resin Band
Delivery between 27–31 July $15.52
| Stone Type | No Stone |
| Metal Type | Resin |
| Metal Color | Black |
| Metal Finish | Satin |
| Metal Plating Type | Ion-Plated |
Casio G-shock Gst-b300 Series Black Resin Watch Gstb300b-1a
Delivery $140.97
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-shock G-steel Gst-b300b-1ajf Black Digital Carbon Core Men
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-B300B-1AJF Mens Wristwatch, Solar Smartphone Link, Black, blackgold, Resin Band
Delivery between 27–31 July $15.52
| Stone Type | No Stone |
| Metal Type | Resin |
| Metal Color | Black |
| Metal Finish | Satin |
| Metal Plating Type | Ion-Plated |
