The GWN-1000B-1AJF, part of G-SHOCK’s “Gulfmaster” series, is a high-performance analog-digital combination watch equipped with radio-controlled solar power, a shock-resistant structure, twin sensors (compass, barometric pressure/altitude, and temperature), and barometric pressure trend information—all designed for use in the harshest marine environments on Earth. Product Details Watch Information Brand G-SHOCK Model Number GWN-1000B-1AJF Case Shape Round Crystal Material Glass Display Type Analog-Digital Clasp Buckle Case Material Other Case Size 44.9 × 55.8 × 16.2 mm Band Material/Type Resin Band Size Approx. 14.5~21.5cm Band Width 20 mm Band Color Black Dial Color Black Calendar Function Day-Date Other Functions Solar Radio-Controlled, Compass, Barometer/Altimeter, Thermometer, Tide Graph Weight 101 g Movement Quartz Water Resistance 200 m ●Shock-Resistant ●Neobrite ●20 bar (200 m) Water Resistance ●Tough Solar (Solar Charging System) ●Radio Wave Reception: Automatic Reception (up to 6 times/day) (China up to 5 times/day)/Manual Reception, Compatible Areas: Japan, North America, Europe, China *When the home time setting is set to a city where reception is possible, the watch receives the station corresponding to that city. The time difference is set based on the selected city. ●Compass Function ・Continuous direction measurement (60 seconds) ・North direction indicator function ・Direction correction function ●Barometric Pressure Measurement Function ・Measurement range: 260~1,100 hPa ・Barometric pressure trend graph display (shows past 20 hours) ・Barometric pressure difference indicator (±10 hPa) ・Barometric pressure trend information alarm (Alerts with an arrow and audible tone when significant barometric pressure changes occur) ● Altitude Measurement Function / Relative Altimeter ・ Measurement Range: -700 to 10,000 m ・Altitude Trend Graph ・Altitude Difference Indicator (±100m/±1000m) ・Measurement Interval Setting Function (5 seconds/2 minutes) ※1-second intervals only for the first 3 minutes) ●Temperature Measurement Function (Measurement Range: -10~60℃) ●Automatic Hand Position Correction ●Hand Retraction (Manual, Automatic during altitude/barometric pressure/temperature measurement) ●World Time: Displays time for 29 cities worldwide (29 time zones, with daylight saving time setting) + UTC (Coordinated Universal Time), Home Time city swap function, UTC direct call function ●Moon Data (Moon phase only) ●Tide Graph ●Stopwatch (1/100-second, 24-hour count, with split time) ●Timer (Set unit: 1 minute, max set: 60 minutes, counts in 1-second increments) ●5 alarms & hourly time signal ●Battery indicator display ●Power saving function (In dark environments, stops hand movement after a set time to conserve power) ●Full auto calendar ●12/24-Hour Format Switch) ●Operation Sound ON/OFF Switch) ●Double LED Light: Dial LED Light (Full Auto Light, Afterglow Function, Afterglow Duration Switch (1.5 sec/3 sec)), LCD Panel LED Backlight (Full Auto Light, Afterglow Function, Afterglow Duration Switch (1.5 sec/3 sec)) ●Operating time from full charge without solar power: When functions are used / Approx. 6 months, In power-saving mode / Approx. 23 months ※If radio wave reception is unavailable, the watch will operate at standard quartz accuracy (average monthly deviation ±15 seconds). "IMPORTANT" Customs and taxes: Your country of residence may apply additional customs duties and import taxes. Please check the laws of your country before bidding. We cannot be held responsible for any expenses incurred for importing items into the purchaser's country of residence. If the winning bidder decides to cancel or withdraw, they will bear all risks, shipping costs, and return import duties.