Casio G-Shock Master of G MUDMASTER GWG-B1000-1A3

Technical Specifications

Case

Dimensions: 58.7 × 52.1 × 16.2 mm
Weight: 114 g
Case and bezel material: Bio-based resin/Stainless steel
Structure: Shock-resistant, vibration-resistant, mud-resistant, Carbon Core Guard structure
Water resistance: 20-bar water resistant

Band

Material: Bio-based resin band
Adjustable length: 145 to 215 mm

Time adjustment and power supply

Time adjustment: Radio-controlled watch; Multi Band 6
Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply: Tough Solar (solar powered)

Sensors

Compass: 16-direction/bearing measurement (0–359°), continuous direction measurement (60 seconds), north indicator, direction memory, automatic horizontal, magnetic declination, and orientation calibration function.

Barometric pressure: Measurement range from 260 to 1,100 hPa (7.65 to 32.45 inHg), 1 hPa (0.05 inHg), barometric pressure trend graph display with 20-hour readout, pressure differential indicator (±10 hPa), barometric pressure trend information alert via arrows and alarm, editable pressure trend graph to take a measurement every 30 minutes for the last 5 hours, hPa to inHg conversion.

Altitude/Relative altimeter: Measurement range from -700 to 10,000 m (-2,300 to 32,800 ft), in 1 m (5 ft) units, advanced memory up to 30 manual date, month, measurement time, and altitude records, auto-log data with maximum/minimum altitude and auto-accumulated memory (ascent/descent), altitude trend graph, altitude differential indicator (±100 m/±1,000 m), measurement interval setting function every 5 seconds/2 minutes, every 1 second only for the first 3 minutes, meters (m) to feet (ft) conversion.

Temperature: Measurement range from -10 to 60 °C (14 °F to 140 °F), 0.1 °C (0.2 °F), Celsius (°C) to Fahrenheit (°F) conversion.

Smartphone connection

Connection: Mobile Link (wireless linking via Bluetooth®)
App: CASIO WATCHES
App functions: Automatic clock adjustment, easy watch setting, world time for approximately 300 cities, app information, time and place, mission log, location indicator, Location Memory, mode customization/display switching, automatic altitude calibration, phone finder.

Exterior

Glass: Sapphire glass with anti-reflective coating
Crown: Screw-lock crown
Surface treatment: DLC treatment (stainless steel part), black ion-plated bezel
Other: Neobrite

World time

Time zones: 38 time zones (55 cities + Coordinated Universal Time)
Functions: Daylight saving time on/off, automatic summer time (DST) switching, home time/world time city swapping.

Sunrise and sunset

Display: Sunrise and sunset time display, sunrise and sunset times for a specific date.

Stopwatch

Function: 1/100-second stopwatch
Measuring capacity: 23:59'59.99''
Measurement modes: Elapsed time, split time, 1st-2nd place times

Timer

Function: Countdown timer
Measuring unit: 1 second
Countdown range: 60 minutes
Start time setting range: 1 to 60 minutes, in 1-minute increments

Alarm and hourly time signal

Alarms: 5 daily alarms
Hourly time signal: Yes

Illumination

Light: Double LED light
Face: Full auto LED light, Super Illuminator, selectable illumination duration (1.5 or 3 seconds), afterglow
Digital display: Full auto LED backlight, Super Illuminator, selectable illumination duration (1.5 or 3 seconds), afterglow
LED color: White

Calendar

Function: Full auto-calendar up to the year 2099

Sound

Sound: Button operation tone on/off

Hands

Hand home position correction: Automatic home position correction
Shift function: Hands shift away to provide an unobstructed view of the digital display content.

Power saving

Function: Power saving; display goes blank and hands stop to save power when the watch is left in the dark.

Battery

Indicator: Battery level indicator
Runtime: 6 months on rechargeable battery, operation period for normal use without exposure to light after charging; 24 months on rechargeable battery, operation period if stored in total darkness with the power saving function on after a full charge.

Accuracy

Accuracy: ±15 seconds per month (with no signal calibration and Mobile Link function)

Timekeeping

Format: 12/24-hour format
Regular timekeeping: Analog: 3 hands (hour, minute, the hand moves every 10 seconds, second), 2 dials. Digital: hour, minute, second, PM, month, date, day of the week.

Time calibration signals

DCF77: Mainflingen, Germany — 77.5 kHz
MSF: Anthorn, England — 60.0 kHz
WWVB: Fort Collins, USA — 60.0 kHz
JJY: Fukushima, Fukuoka/Saga, Japan — 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)
BPC: Shangqiu City, Henan Province, China — 68.5 kHz

Time calibration signal reception

Auto receive: Up to six times a day; remaining auto receives are canceled as soon as one is successful. 5 times a day for the Chinese calibration signal.
Manual receive: Available
Reception results: Display of the most recent signal reception results.