G-Shock
Master of G-Land Mudmaster Black Resin Band Watch
SKU: GRB300EC-1A
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Whatever you’re doing, wherever you are — the G-SHOCK Master of G line has your back.
Based on GRAVITYMASTER, MUDMASTER, and MUDMAN models that deliver peak performance in punishing conditions in the air and on land, this line features a black watch case symbolizing toughness, with accents in vivid emergency colors that capture the world of professionals involved in rescue efforts and other critical missions.
The organic form of the GRAVITYMASTER GR-B300EC 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.
Feature Overview
Warranty
2 Years
Packaging
G-Shock Box
Case Size
59mm
Gender
Men
Glass Material
Mineral Crystal
Movement
Solar
Water Resistance
200 Meters
Band Type
Black Resin
Specifications
- Case size (L× W× H): 59 × 54.7 × 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) - Glass: Mineral Glass
- Crown: Screw Lock Crown
- Surface treatment: Black ion plated bezel
- Compatible band size: 145 to 215 mm
- Other: Neobrite
- World time: Dual time (Home City time swapping)
- Stopwatch:
1-second stopwatch
Measuring capacity: 23:59'59.
Measuring modes: Elapsed time, split time - Timer:
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
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) 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:
5 months on rechargeable battery (operation period with normal use without exposure to light after charge)
18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) - Accuracy: Accuracy: ±15 seconds per month (with no mobile link function)
- Other features:
Date display
Day indicator
Regular timekeeping:
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)
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Shipping & Returns
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- Efficient Same Day Delivery in Sydney - Calculated at Checkout
- Signature on Delivery is included on all shipments within Australia.
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To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.