Overview
The Casio G-Shock Gulfmaster GWN-1000B-1BJF represents the pinnacle of marine-grade digital watches, combining advanced sensor technology with G-Shock’s legendary toughness. Designed specifically for maritime professionals and ocean enthusiasts, this timepiece features a bold black design with easy-to-read displays and comprehensive navigation tools. The Gulfmaster series is purpose-built to withstand harsh marine environments while providing critical weather and directional data at a glance.
Key Features
* Tough Solar Power System – Eco-friendly solar charging eliminates battery changes
* Multi-Band 6 Atomic Timekeeping – Automatically syncs with radio signals from 6 transmission stations worldwide for perfect accuracy
* Triple Sensor Technology – Digital compass, barometric pressure/altitude sensor, and thermometer
* 200M Water Resistance – Professional-grade water resistance suitable for marine sports and diving
* Tide Graph & Moon Data – Essential tools for fishing, sailing, and ocean activities
* World Time Function – 48 cities, 31 time zones with UTC display
* Sapphire Crystal with Anti-Reflective Coating – Superior scratch resistance and visibility
* Neon Illuminator LED Backlight – High-brightness LED for excellent nighttime visibility
* Yacht Timer Function – Countdown timer for sailing race starts
* Resin Band with Stainless Steel Keeper – Comfortable, corrosion-resistant construction
* Full Auto Calendar – Pre-programmed until 2099
* Battery Level Indicator – Monitor solar charge status
* Power Saving Function – Extends battery life during storage
Technical Specifications
Movement: Tough Solar (Solar-Powered Quartz) with Multi-Band 6 Radio Control
Case Size: 56.2mm × 53.8mm × 17.3mm
Weight: Approximately 93g
Case Material: Shock-resistant resin with stainless steel buttons
Band Material: Resin with stainless steel keeper
Crystal: Sapphire crystal with anti-reflective coating
Water Resistance: 200 meters (20 ATM)
Functions: Triple Sensor (compass, barometer/altimeter, thermometer), tide graph, moon phase, sunrise/sunset times, yacht timer, 1/100-second stopwatch, countdown timer, 5 daily alarms, world time
Radio Signal Reception: Multi-Band 6 (Japan ×2, North America, UK, Germany, China)
Battery Life: Approximately 7 months on full charge (without further exposure to light)
Accuracy: ±15 seconds per month (when not receiving radio signal)
Display: Digital LCD with multiple information displays
Shipping & Handling
Your Casio G-Shock Gulfmaster GWN-1000B-1BJF will be carefully inspected, professionally packaged with protective materials, and shipped with full tracking from our Tokyo facility. We use trusted international courier services to ensure fast, secure delivery to the US, UK, and Australia. Each watch is protected during transit to arrive in pristine condition. You’ll receive tracking information within 24 hours of shipment, and most deliveries arrive within 5-10 business days.
About Watch-Tokyo.com
Thank you very much for your interest in our store.
All our watches are 100% authentic Japanese models, shipped carefully from Tokyo.
At our official store Watch-Tokyo.com, you can find Japan-exclusive models, special prices and fast shipping to the US, UK and Australia:
