G-SHOCK GR-B300-1A - GULFMASTER
G-SHOCK GR-B300-1A - GULFMASTER
The GULFMASTER is the Master of G model built for water, which on a watch means tides and moon phases as much as it means depth rating.
It sits in G-SHOCK's Master of G family alongside the MUDMASTER and RANGEMAN, each built for one environment. The GR-B300 uses a Carbon Core Guard structure with steel components and a screw-lock crown, and at 71 grams it is remarkably light for a case this size.
Black, grey and white across the face on a black band, in a case 59 by 54.7 mm and 15.7 mm deep. Module 5719 runs on Tough Solar with a rechargeable cell and pairs to the CASIO WATCHES app over Bluetooth, covering world time, a stopwatch, a countdown timer, alarms and a full auto-calendar. Neobrite on the hands. 200 m water resistant.
Very large and barely there on the wrist. The lightest big watch G-SHOCK makes.
Perfect for: GULFMASTER watches, lightweight large sports watches, solar Bluetooth Master of G watches.
Specifications
- Collection
- Master of G
- Case Diameter
- 54.7 mm
- Case Thickness
- 15.7 mm
- Case Material
- Carbon-bio / Resin-bio / Stainless steel
- Crystal
- Mineral Glass
- Water Resistance
- 200 m (20 ATM)
- Dial Color
- Black / Gray / White
- Movement
- Solar
- Caliber
- Casio module 5719
- Functions
- World time, Stopwatch, Countdown timer, Alarm, Auto calendar, Bluetooth, Solar charging
- Strap / Bracelet
- Resin Band (Biomass plastics)
- Strap Color
- Black
- Reference
- GR-B300-1A
- Released
- 2024-05-15
- Case Size
- 59 x 54.7 x 15.7 mm
- Weight
- 71 g
- Finish
- Neobrite
- Construction
- Shock Resistant; Carbon Core Guard structure
- Crown
- Screw Lock Crown
- Band Size
- 145 to 215 mm
- Power
- Tough Solar (Solar powered); Rechargeable Battery
- Accuracy
- ±15 seconds per month (with no mobile link function)
- Time Adjustment
- Bluetooth: Connects to a smartphone and automatically adjusts the time
- Calendar
- Full auto-calendar (to year 2099)
- Smartphone Link
- Mobile link (Wireless linking using Bluetooth®)
- Illumination
- LED light (Super Illuminator) Afterglow
- World Time
- Dual time (Home City time swapping)
- Stopwatch
- 1-second stopwatch Measuring capacity: 23:59'59. Measuring modes: Elapsed time, split time
- 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
- Daily alarm
- Other Features
- Date display; Day indicator; Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)