Introducing the GST-B300, the first G-STEEL watch with a front button, and which adopts a new Carbon Core Guard structure that delivers superior shock resistance by using the lightness and outstanding rigidity of carbon fiber. The GST-B300 has Tough Solar power and Bluetooth smartphone link. The battery indicator at the 6 o’clock position, designed to evoke a brake disk, shows the remaining battery power by an arrow pointer and a curved red bar, providing visually interesting ways to check the battery. Other features include world time, 1/1000-second stopwatch, 1/10-second countdown timer (24 hours max), 5 multi-function alarms (with daily, 1 time, schedule), and full auto double LED lights (Super Illuminator) with adjustable afterglow. GST-B300S-1AER has a silver coloured stainless steel bezel and a black soft urethane band.
Introducing the GST-B300, the first G-STEEL watch with a front button, and which adopts a new Carbon Core Guard structure that delivers superior shock resistance by using the lightness and outstanding rigidity of carbon fiber. The GST-B300 has Tough Solar power and Bluetooth smartphone link. The battery indicator at the 6 o’clock position, designed to evoke a brake disk, shows the remaining battery power by an arrow pointer and a curved red bar, providing visually interesting ways to check the battery. Other features include world time, 1/1000-second stopwatch, 1/10-second countdown timer (24 hours max), 5 multi-function alarms (with daily, 1 time, schedule), and full auto double LED lights (Super Illuminator) with adjustable afterglow. GST-B300S-1AER has a silver coloured stainless steel bezel and a black soft urethane band.
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The lowest price for Casio Men's G-Shock G-Steel Watch right now is $261.00 at Chrono24.com.au, compared across 2 retailers.
Casio Men's G-Shock G-Steel Watch
Introducing the GST-B300, the first G-STEEL watch with a front button, and which adopts a new Carbon Core Guard structure that delivers superior shock resistance by using the lightness and outstanding rigidity of carbon fiber. The GST-B300 has Tough Solar power and Bluetooth smartphone link. The battery indicator at the 6 o’clock position, designed to evoke a brake disk, shows the remaining battery power by an arrow pointer and a curved red bar, providing visually interesting ways to check the battery. Other features include world time, 1/1000-second stopwatch, 1/10-second countdown timer (24 hours max), 5 multi-function alarms (with daily, 1 time, schedule), and full auto double LED lights (Super Illuminator) with adjustable afterglow. GST-B300S-1AER has a silver coloured stainless steel bezel and a black soft urethane band.
Introducing the GST-B300, the first G-STEEL watch with a front button, and which adopts a new Carbon Core Guard structure that delivers superior shock resistance by using the lightness and outstanding rigidity of carbon fiber. The GST-B300 has Tough Solar power and Bluetooth smartphone link. The battery indicator at the 6 o’clock position, designed to evoke a brake disk, shows the remaining battery power by an arrow pointer and a curved red bar, providing visually interesting ways to check the battery. Other features include world time, 1/1000-second stopwatch, 1/10-second countdown timer (24 hours max), 5 multi-function alarms (with daily, 1 time, schedule), and full auto double LED lights (Super Illuminator) with adjustable afterglow. GST-B300S-1AER has a silver coloured stainless steel bezel and a black soft urethane band.
The all-time low was $61.02 on 23 July 2026 — today's price is 328% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 4 Nov 2026.
Last updated at 04/11/2026 09:56:37
Casio GST-B300S-1A
Free delivery
Casio G-shock G-steel Gst-b300 Tough Solar Bluetooth 20 Bar 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!
| Brand | Casio |
| Style | Bracelet |
| Display | Digital |
| Smartwatch | Yes |
| Water Resistant | Yes |
Casio GST-B300S-1A
Free delivery
Casio G-shock G-steel Gst-b300 Tough Solar Bluetooth 20 Bar 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!
| Brand | Casio |
| Style | Bracelet |
| Display | Digital |
| Smartwatch | Yes |
| Water Resistant | Yes |
