Inspired by the skies, the G-SHOCK Master of G - Air Gravity Master GR-B300H-5ADR sets a black dial in a 54.7 mm square stainless steel case on a brown resin band. Quartz powered and water resistant to 20 ATM.
Inspired by the skies, the G-SHOCK Master of G - Air Gravity Master GR-B300H-5ADR sets a black dial in a 54.7 mm square stainless steel case on a brown resin band. Quartz powered and water resistant to 20 ATM.
in 6 offers
The lowest price for G-shock Master Of G right now is $445.68 at Watchspree, compared across 6 retailers.
The all-time low was $442.22 on 20 Oct 2026 — today's price is 1% above the lowest ever. This is at or near its all-time low — a good time to buy.
Prices last updated 6 Nov 2026.
G-shock Master Of G
Inspired by the skies, the G-SHOCK Master of G - Air Gravity Master GR-B300H-5ADR sets a black dial in a 54.7 mm square stainless steel case on a brown resin band. Quartz powered and water resistant to 20 ATM.
Inspired by the skies, the G-SHOCK Master of G - Air Gravity Master GR-B300H-5ADR sets a black dial in a 54.7 mm square stainless steel case on a brown resin band. Quartz powered and water resistant to 20 ATM.
Last updated at 06/11/2026 00:30:59
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| Brand | Casio |
| Style | Wrist |
| Department | Unisex |
| Water Resistant | Yes |
| Case Shape | Square |
Casio G-Shock MASTER OF G AIR GRAVITYMASTER Master In Horizon Gold Series Bluetooth Tough Solar Bio-Based Dark Brown Resin Band Watch GRB300H-5A GR-
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Free delivery between 12–20 Nov
| Brand | Casio |
| Style | Wrist |
| Department | Unisex |
| Water Resistant | Yes |
| Case Shape | Square |
