
Casio Men's G-Shock Master of G Air GravityMaster in Rescue Yellow GR-B300RY-1A9JF
| Product Highlights | |
| Supporting activities in harsh environments, the G-SHOCK MASTER OF G series features the GRAVITYMASTER, MUDMAN, and RANGEMAN models. Embodying toughness, these watches combine a black body with a striking yellow band, symbolizing the support for both air and land operations. Designed to express the world of professionals undertaking challenging missions in rescue scenarios. The GRAVITYMASTER GR-B300RY showcases an organic form inspired by next-generation aircraft, with a seamless exterior design. Featuring a Carbon Core Guard structure and a 3D wide face, it prioritizes durability, visibility, and comfort. Practical functions include dual time display for two cities and a flight log to manage travel history. The MUDMAN GW-9500MRY boasts shock-resistant construction, dust and mud resistance, solar-powered technology, and a triple sensor. Enhanced visibility for direction with a duplex LCD for improved practicality of the digital compass. Additionally, stainless steel parts are used in the bezel, coated in black IP for a rugged design. The RANGEMAN GPR-H1000RY, with its shock-resistant and dust/mud-resistant construction, incorporates six sensors including a heart rate monitor, along with GPS functionality for measuring position, distance, and speed. Real-time tracking for 9 different activities. A tough watch supporting quick decision-making and precise actions even in challenging environments. | |
| Product Overview | |
| Supporting activities in harsh environments, the G-SHOCK MASTER OF G series features the GRAVITYMASTER, MUDMAN, and RANGEMAN models. Embodying toughness, these watches combine a black body with a striking yellow band. | |
| Gender | Men's |
| Dial | Multi-hand analog |
| Movement | Tough Solar *Solar charging system |
| Case Shape | Round |
| Case Size | 54.7mm |
| Case Material | Carbon (Biomass) *Resin (Biomass Plastic) / Stainless Steel |
| Glass Material | Inorganic glass |
| Band Type | Resin *Biomass Plastic Band Length: 145-215mm |
| Band Color | Yellow tones |
| Water Resistance | 20 bar water resistance |
| Other Features | Shock-resistant *Shock Resist, Tough Solar (Solar charging system), 20 bar water resistance, Mobile link function (Function linkage via Bluetooth(R) communication with compatible mobile phones), Dual time (Time swapping function with home time), Stopwatch (1-second, 24-hour measurement with split), Timer (Set unit: 1 minute, Maximum set: 24 hours, Measurement in 1-second increments), Electronic alarm, Battery indicator display, Power saving function (Stops the needle movement after a certain time in the dark to save power), Full auto calendar, Date/day display, LED light (Super illuminator with afterglow function), Operating time from full charge without solar generation: about 5 months / Power saving mode: about 18 months |
| Release Date | 2025/02/14 |
| Retail Price | ¥ 49,500.00 JPY |
Original: $257.01
-65%$257.01
$89.95More Images




Casio Men's G-Shock Master of G Air GravityMaster in Rescue Yellow GR-B300RY-1A9JF
| Product Highlights | |
| Supporting activities in harsh environments, the G-SHOCK MASTER OF G series features the GRAVITYMASTER, MUDMAN, and RANGEMAN models. Embodying toughness, these watches combine a black body with a striking yellow band, symbolizing the support for both air and land operations. Designed to express the world of professionals undertaking challenging missions in rescue scenarios. The GRAVITYMASTER GR-B300RY showcases an organic form inspired by next-generation aircraft, with a seamless exterior design. Featuring a Carbon Core Guard structure and a 3D wide face, it prioritizes durability, visibility, and comfort. Practical functions include dual time display for two cities and a flight log to manage travel history. The MUDMAN GW-9500MRY boasts shock-resistant construction, dust and mud resistance, solar-powered technology, and a triple sensor. Enhanced visibility for direction with a duplex LCD for improved practicality of the digital compass. Additionally, stainless steel parts are used in the bezel, coated in black IP for a rugged design. The RANGEMAN GPR-H1000RY, with its shock-resistant and dust/mud-resistant construction, incorporates six sensors including a heart rate monitor, along with GPS functionality for measuring position, distance, and speed. Real-time tracking for 9 different activities. A tough watch supporting quick decision-making and precise actions even in challenging environments. | |
| Product Overview | |
| Supporting activities in harsh environments, the G-SHOCK MASTER OF G series features the GRAVITYMASTER, MUDMAN, and RANGEMAN models. Embodying toughness, these watches combine a black body with a striking yellow band. | |
| Gender | Men's |
| Dial | Multi-hand analog |
| Movement | Tough Solar *Solar charging system |
| Case Shape | Round |
| Case Size | 54.7mm |
| Case Material | Carbon (Biomass) *Resin (Biomass Plastic) / Stainless Steel |
| Glass Material | Inorganic glass |
| Band Type | Resin *Biomass Plastic Band Length: 145-215mm |
| Band Color | Yellow tones |
| Water Resistance | 20 bar water resistance |
| Other Features | Shock-resistant *Shock Resist, Tough Solar (Solar charging system), 20 bar water resistance, Mobile link function (Function linkage via Bluetooth(R) communication with compatible mobile phones), Dual time (Time swapping function with home time), Stopwatch (1-second, 24-hour measurement with split), Timer (Set unit: 1 minute, Maximum set: 24 hours, Measurement in 1-second increments), Electronic alarm, Battery indicator display, Power saving function (Stops the needle movement after a certain time in the dark to save power), Full auto calendar, Date/day display, LED light (Super illuminator with afterglow function), Operating time from full charge without solar generation: about 5 months / Power saving mode: about 18 months |
| Release Date | 2025/02/14 |
| Retail Price | ¥ 49,500.00 JPY |
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Description
| Product Highlights | |
| Supporting activities in harsh environments, the G-SHOCK MASTER OF G series features the GRAVITYMASTER, MUDMAN, and RANGEMAN models. Embodying toughness, these watches combine a black body with a striking yellow band, symbolizing the support for both air and land operations. Designed to express the world of professionals undertaking challenging missions in rescue scenarios. The GRAVITYMASTER GR-B300RY showcases an organic form inspired by next-generation aircraft, with a seamless exterior design. Featuring a Carbon Core Guard structure and a 3D wide face, it prioritizes durability, visibility, and comfort. Practical functions include dual time display for two cities and a flight log to manage travel history. The MUDMAN GW-9500MRY boasts shock-resistant construction, dust and mud resistance, solar-powered technology, and a triple sensor. Enhanced visibility for direction with a duplex LCD for improved practicality of the digital compass. Additionally, stainless steel parts are used in the bezel, coated in black IP for a rugged design. The RANGEMAN GPR-H1000RY, with its shock-resistant and dust/mud-resistant construction, incorporates six sensors including a heart rate monitor, along with GPS functionality for measuring position, distance, and speed. Real-time tracking for 9 different activities. A tough watch supporting quick decision-making and precise actions even in challenging environments. | |
| Product Overview | |
| Supporting activities in harsh environments, the G-SHOCK MASTER OF G series features the GRAVITYMASTER, MUDMAN, and RANGEMAN models. Embodying toughness, these watches combine a black body with a striking yellow band. | |
| Gender | Men's |
| Dial | Multi-hand analog |
| Movement | Tough Solar *Solar charging system |
| Case Shape | Round |
| Case Size | 54.7mm |
| Case Material | Carbon (Biomass) *Resin (Biomass Plastic) / Stainless Steel |
| Glass Material | Inorganic glass |
| Band Type | Resin *Biomass Plastic Band Length: 145-215mm |
| Band Color | Yellow tones |
| Water Resistance | 20 bar water resistance |
| Other Features | Shock-resistant *Shock Resist, Tough Solar (Solar charging system), 20 bar water resistance, Mobile link function (Function linkage via Bluetooth(R) communication with compatible mobile phones), Dual time (Time swapping function with home time), Stopwatch (1-second, 24-hour measurement with split), Timer (Set unit: 1 minute, Maximum set: 24 hours, Measurement in 1-second increments), Electronic alarm, Battery indicator display, Power saving function (Stops the needle movement after a certain time in the dark to save power), Full auto calendar, Date/day display, LED light (Super illuminator with afterglow function), Operating time from full charge without solar generation: about 5 months / Power saving mode: about 18 months |
| Release Date | 2025/02/14 |
| Retail Price | ¥ 49,500.00 JPY |






















