[CASIO] G-SHOCK GRAVITYMASTER Men's Watch with Bluetooth, Tough Solar, Biomass Plastic GR-B300-1A4JF Black
JAN
4549526373138
ASIN
B0D25C1LRS
Maker
Model No.
1002694
Color
Size
Description
G-SHOCK - GRAVITYMASTER - Bluetooth-Equipped - Biomass Plastic - GR-B300-1A4JF
Description\
\
From the G-SHOCK MASTER OF G series for professionals operating in harsh environments comes the aviation-inspired GRAVITYMASTER GR-B300. The GR-B300 features the GRAVITYMASTER's shock-resistant “Carbon Core Guard Structure,” utilizing the properties of carbon fiber (impact resistance, rigidity, and resistance to degradation) also found in aircraft bodies. Combining a case made of carbon fiber reinforced resin with a seamless bezel inspired by next-generation aircraft achieves the powerful form expected of a GRAVITYMASTER. Designed for flight logging, it features a Flight Log function to record current location and time, along with Dual Time for simultaneous display of two time zones, evoking the world of aircraft and pilots. In addition to the Home Time Swap function, which instantly switches the home time city and local time city with a tap on the app button, it features Dual Time for displaying two cities' times simultaneously, useful for overseas travel. To ensure critical visibility during flight when intuitive readability is essential, it employs large, three-dimensional hour markers and a metal bezel that emphasizes the wide face, enhancing its functional appeal. Furthermore, a dual-coil motor is employed for the disc hand at the 9 o'clock position, pursuing both the movement of the hands and functional beauty. It serves not only for the alarm ON/OFF function and stopwatch rotation display but also functions as a battery indicator. While incorporating high-contrast accent colors reminiscent of an aircraft cockpit on the dial and buttons, the design utilizes functional dark color variations. The case, bezel, and band utilize biomass plastic, expected to reduce environmental impact. It ensures the time precision required for aviation missions through Bluetooth® connection for time correction, while also pursuing practicality via solar power. This GRAVITYMASTER embodies the professional aviation worldview and the “aspiration for the skies,” supporting relentless challenges to the limits.\
▪️Shock-resistant structure\
▪️ Tough Solar (Solar Charging System)\
▪️ Water Resistance to 20 Bar (200 m)\
▪️ Mobile Link Function (Function linkage via Bluetooth® communication with compatible mobile phones)\
▪️ Dual Time (with home time swap function)\
▪️ Stopwatch (1-second, 24-hour, with split)\
▪️ Timer (Set unit: 1 minute, Maximum set: 24 hours, Measures in 1-second increments)\
▪️ Electronic alarm\
▪️ Battery indicator display\
▪️ Power saving function (In dark environments, hands stop moving after a set period to conserve power)\
▪️ Full Auto Calendar\
▪️ Date and Day Display\
▪️ LED Light (Super Illuminator with afterglow function)\
▪️ Operating Time from Full Charge Without Solar Power: Approx. 5 months when using functions\
Approx. 18 months in Power Saving mode\
* When not connected to a smartphone, it operates with standard quartz accuracy (average monthly deviation ±15 seconds). Brand Name: G-SHOCK
Watch Box, Instruction Manual
Introducing the GRAVITYMASTER GR-B300 series from the G-SHOCK MASTER OF G line, designed for professionals operating in harsh environments. This aviation-inspired model features a shock-resistant structure.
Description\
\
From the G-SHOCK MASTER OF G series for professionals operating in harsh environments comes the aviation-inspired GRAVITYMASTER GR-B300. The GR-B300 features the GRAVITYMASTER's shock-resistant “Carbon Core Guard Structure,” utilizing the properties of carbon fiber (impact resistance, rigidity, and resistance to degradation) also found in aircraft bodies. Combining a case made of carbon fiber reinforced resin with a seamless bezel inspired by next-generation aircraft achieves the powerful form expected of a GRAVITYMASTER. Designed for flight logging, it features a Flight Log function to record current location and time, along with Dual Time for simultaneous display of two time zones, evoking the world of aircraft and pilots. In addition to the Home Time Swap function, which instantly switches the home time city and local time city with a tap on the app button, it features Dual Time for displaying two cities' times simultaneously, useful for overseas travel. To ensure critical visibility during flight when intuitive readability is essential, it employs large, three-dimensional hour markers and a metal bezel that emphasizes the wide face, enhancing its functional appeal. Furthermore, a dual-coil motor is employed for the disc hand at the 9 o'clock position, pursuing both the movement of the hands and functional beauty. It serves not only for the alarm ON/OFF function and stopwatch rotation display but also functions as a battery indicator. While incorporating high-contrast accent colors reminiscent of an aircraft cockpit on the dial and buttons, the design utilizes functional dark color variations. The case, bezel, and band utilize biomass plastic, expected to reduce environmental impact. It ensures the time precision required for aviation missions through Bluetooth® connection for time correction, while also pursuing practicality via solar power. This GRAVITYMASTER embodies the professional aviation worldview and the “aspiration for the skies,” supporting relentless challenges to the limits.\
▪️Shock-resistant structure\
▪️ Tough Solar (Solar Charging System)\
▪️ Water Resistance to 20 Bar (200 m)\
▪️ Mobile Link Function (Function linkage via Bluetooth® communication with compatible mobile phones)\
▪️ Dual Time (with home time swap function)\
▪️ Stopwatch (1-second, 24-hour, with split)\
▪️ Timer (Set unit: 1 minute, Maximum set: 24 hours, Measures in 1-second increments)\
▪️ Electronic alarm\
▪️ Battery indicator display\
▪️ Power saving function (In dark environments, hands stop moving after a set period to conserve power)\
▪️ Full Auto Calendar\
▪️ Date and Day Display\
▪️ LED Light (Super Illuminator with afterglow function)\
▪️ Operating Time from Full Charge Without Solar Power: Approx. 5 months when using functions\
Approx. 18 months in Power Saving mode\
* When not connected to a smartphone, it operates with standard quartz accuracy (average monthly deviation ±15 seconds). Brand Name: G-SHOCK
Watch Box, Instruction Manual
Introducing the GRAVITYMASTER GR-B300 series from the G-SHOCK MASTER OF G line, designed for professionals operating in harsh environments. This aviation-inspired model features a shock-resistant structure.
Package
Size (Approx.):
Size (Approx.):
128x96x200 mm
Package
Weight (Approx.):
Weight (Approx.):
230 g
38,362 JPY (Including Tax)
Stock :
1
Scheduled Shipping:
2026-07-21
Quantity :
Reference Price from Other Stores
