Whatever you\u2019re doing, wherever you are \u2014 the G-SHOCK Master of G line has your back. For total support in the harshest environments, this GRAVITYMASTER watch delivers peak performance in punishing conditions in air. It features bold black to exude toughness and a band in the same bright yellow used for emergency rescues and safety signs. This innovative design is a sure fit for the world of professionals involved in rescue efforts and other critical missions. The organic form of the GRAVITYMASTER GRB300RY is inspired by next-generation aircraft and rendered with a seamless exterior design. The Carbon Core Guard structure and wide 3D face deliver durability, readability, and a comfortable fit. Enjoy all the practical functions as well, including dual-time simultaneously showing the time in two cities, a flight log memory function for recording routes traveled, and more. This tough watch delivers what you need to make quick decisions and take decisive action in the harshest of environments.<\/p>\n
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Case size (L\u00d7 W\u00d7 H):59 \u00d7 54.7 \u00d7 15.7 mm
Weight:71 g
Case and bezel material:Bio-based Carbon \/ Bio-based resin \/ Stainless steel
Band:Bio-based resin band
Construction:Shock Resistant,Carbon Core Guard structure
Water resistance:200-meter water resistance
Time adjustment:Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life:Tough Solar (Solar powered)<\/p>\n
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Smartphone Link feature:Mobile link (Wireless linking using Bluetooth\u00ae)
Apps:CASIO WATCHES
App connectivity feature:Auto time adjustment,Easy watch setting,Approximately 300 world time cities,Flight log,Phone finder<\/p>\n
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Glass:Mineral Glass
Crown:Screw Lock Crown
Surface treatment:Black ion plated bezel
Compatible band size:145 to 215 mm
Other:Neobrite<\/p>\n
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World time:Dual time (Home City time swapping)
Stopwatch:1-second stopwatchu0026#10
Measuring capacity: 23:59u002759.u0026#10
Measuring modes: Elapsed time, split time
Timer:Countdown timeru0026#10
Measuring unit: 1 secondu0026#10
Countdown range: 24 hoursu0026#10
Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Alarm\/hourly time signal:Daily alarm
Light:LED light (Super Illuminator)u0026#10
Afterglow
Light color:LED:White
Calendar:Full auto-calendar (to year 2099)
Energy saving feature:Power Saving (hands stop to save power when the watch is left in the dark)
Battery display\/alert:Battery level indicator
Run time:Approx. battery operating time:u0026#10
5 months on rechargeable battery (operation period with normal use without exposure to light after charge)u0026#10
18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Accuracy:Accuracy: \u00b115 seconds per month (with no mobile link function)
Other features:Date display,Day indicator,Regular timekeeping:u0026#10
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"
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