G-Shock GWN1000B Master of G Series Quality Watch - Black / One Size

Radio frequencies: 77.5 kHz (DCF77: Germany); 60 kHz (MSF: UK); 60 kHz (WWVB: USA); 40 kHz (JJY: Fukushima, Japan) / 60 kHz (JJY: Kyushu, Japan); 68.5 kHz (BPC: China)
Radio wave reception: Automatic reception up to six times a day (except for use in China: up to five times a day); manual reception
Digital compass: Measures and displays direction as one of 16 points with the second hand; measuring range: 0 to 359; measuring unit: 1; 60 seconds continuous measurement; bidirectional calibration and magnetic declination correction
Barometer: Measuring range: 260 hPa to 1,100 hPa (7.65 to 32.45 inHg); measuring unit: 1 hPa (0.05 inHg); atmospheric pressure change indicator (10 hPa); atmospheric pressure tendency graph (past 20 hours graph display); barometric pressure tendency
Altimeter: Measuring range: -700m to 10,000m (-2,300 to 32,800 ft); measuring unit: 1m (5 ft); altitude change indicator (100 m / 1000 m); others: measurement interval setting (every 5 seconds / every 2 minutes) (1 second for first three minutes on

Brand Description: G-SHOCK created a new concept of toughness in the watch. It all started with a developer's heat belief that creating a watch that won't break even if dropped, and a challenge that overpowers the common sense of the time. Over 200 prototypes have been repeatedly spent about 2 years and finished with shock-resistant construction. The birth of technology that is the core of tough. Since then, G-SHOCK has evolved unended. Construction, Material and Function Go for extra tough from every aspect.

The Model Master of G "Gulf Master" is designed to be used on the maritime as one of the toughest natural environments on the planet. The G-SHOCK first "Triple Sensor Ver. 3+ Smart Access" allows you to quickly and securely display the information that crew and rangers who are active in storms and rough waves. We've evolved the barometric pressure function that crew needs most In case of sudden changes in pressure due to storms or low pressure, the dial indicators and digital display are included, and the atmospheric trend information will notify you with an alarm. It also features a function that allows you to quickly see the difference between the past and current values recorded by automatic pressure measurement and the carbon fiber second hand engraved on the bezel. It also features a compass measurement that is essential for performing marine missions, tide graph/moon age display, and a temperature measurement function that is important in unforeseen situations. The design features an instrument and compass of a ship that feels like the sea. It has a uniform circle shape from the bezel, buttons, and screws. It is finished in a form that prevents the watch from interfering with rope and equipment on the boat. The light and sensor buttons also feature key features aluminum ring composite buttons with blue and red color to support sensory operation. The large crown has a quick-lock mechanism that maintains waterproof performance and provides a toughness design. Introducing the Gulf Master, who has evolved in function to challenge the sea to the extremes.

Shock resistant construction (shock resist)
Neobrite
Water resistant to 20 ATM.
Tough Solar (solar charging system).
Radio reception function: Automatic reception (up to 6 times per day) (Up to 5 times per day) / Manual reception / Compatible areas / Japan, North America, Europe, China
*Set your home time setting to a city that can receive a station that matches the city. Furthermore, the time difference will be set based on the selected city.
Bearing measurement function.
Continuous bearing measurement (60 seconds)
Northern direction indicator function.
Direction correction function.
Pressure measurement function.
Measurement range: 260 - 1,100 hPa
・Barometric pressure trend graph display (displays the last 20 hours minute).
Pressure difference indicator (±10 hPa)
Atmospheric pressure trend information alert (When a characteristic change in atmospheric pressure, the arrow and alarm will notify you).
Altimeter function / Relative altimeter
Measurement range: -700 - 10,000 m
Altitude trend graph
Altitude difference indicator (±100 m/±1000 m)
Measurement interval settings function (every 5 seconds/2 minutes) *Only every 1 second for the first 3 minutes).
Temperature measurement function (measurement range: -10~60℃))
Automatic needle position correction function)
Needle evacuation function (manually, automatic (when altitude/atmospheric pressure/temperature measurement)).
World time: 29 cities around the world (29 time zones, with daylight saving setting function) + UTC (Coordinated Universal Time) time display, home city exchange function, UTC direct call function).
Moon data (moon age only).
TIDE GRAPH)
Stopwatch (1/100 second, 24 hour counter, split included)
Timer (set unit: 1 minute, maximum set: 60 minutes, measured in 1 second increments)
5 time alarms, hourly time signal)
Battery indicator display)
Power saving function (after a certain period of time in dark places, the operation needle will stop and save energy.)
Fully automatic calendar)
Switch between 12 and 24 hour displays)
● Control sound on/off function
Double LED lights: LED light for dial (full auto light, afterglow function, afterglow time switch (1.5 seconds/3 seconds), LED backlight for LCD parts (full auto light, afterglow function, afterglow time switching (1.5 seconds/3 seconds))
Operating time when fully charged, without solar power: About 6 months when function is in use, and when power saving state: About 23 months.
If no radio wave reception is received, it will work with normal quartz accuracy (average monthly difference ± 15 seconds).

ASIN: B00KIBWQXA