G-Shock Gravitymaster GRB300-1A now sold at a discount by Amazon.com
June 18, 2026
The aviation-themed G-Shock Gravitymaster GRB300-1A is available from Amazon (with “Shipper / Seller Amazon.com”) and is currently selling at a 23% 15% discount from the usual $330 price for $254.51 $278.98. (Price is subject to change at any time.) The GRB300-1A is a solid option for a mid-range G-Shock with a three-handed analog display, but some may find the 54.7-millimeter width to be on the large side for smaller wrists. (The GR-B300 is the most affordable G-Shock watch with three hands, with the next being the non-solar Mudmaster GG1000 and the solar G-STEEL GSTB100 at $385 each.) Notable features of the GR-B300 include a Carbon Core Guard case, Tough Solar power, Bluetooth smartphone link, dual time, 1-second stopwatch with split time, 24-hour countdown timer, daily alarm, LED light, and full auto-calendar. Although the watch doesn’t appear to have a battery level indicator, the rotary disc indicator near 9 o’clock serves as the battery level indicator by pressing the lower-right button. (G-Shock watches with Amazon.com as the Seller include a 1-year Casio U.S. warranty.)
Disclosure: G-Central is an independent fansite supported by ads. We may earn a commission on sales from our links to external sites labeled with "affiliate link." Prices in articles are USD unless otherwise noted. Japanese yen prices include tax. Please follow your country's official G-Shock site for release updates.
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