Casio GWG-1000-1A1 G-Shock Mudmaster Men's Watch

Brand: Casio G-Shock, Series: Mudmaster Series, Model: GWG-1000-1A1, Gender: Men's, Case size: 56.1mm, Case Thickness: 18mm, Dial Color: Black, Case / bezel Material: Carbon / Resin, Band Material: Resin Band, Band Color: Black, Clasp: Tang, Construction: Shock Resistant, Mud Resistant, Carbon Core Guard structure, Approx. battery life: 2 years on CR2025, Time adjustment: Radio-controlled Watch; Multi band 6, Crown: Screw Lock Crown, Glass: Sapphire crystal with glare-resistant coating, Other: Neobrite, Bezel: Fixed, Bezel Color: Black, Bezel Material: Resin, Weight: 119g, Water Resistant: 200 Meters, Warranty: 2 Years

Watch Features

Sensor feature:
Altimeter
Measuring range: -700 to 10,000 m ( -2,300 to 32,800 ft.)
Measuring unit: 1 m (5 ft.)
Hand indication of altitude differential
Manual memory measurements (up to 30 records, each including altitude, date, time)
Auto log data (High/low altitudes, cumulative ascent and descent)
Others: Relative altitude readings (±100m /±1000m),
Selectable measurement interval: 5 seconds or 2 minutes
*1 second for first 3 minutes only
*Changeover between meters (m) and feet (ft)
Barometer
Display range: 260 to 1,100 hPa (7.65 to 32.45 inHg)
Display unit: 1 hPa (0.05 inHg)
Hand indication of pressure differential
Atmospheric pressure tendency graph
Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure)
*Changeover between hPa and inHg
Digital compass
Measures and displays direction as one of 16 points
Measuring range: 0 to 359°
Measuring unit: 1°
60 seconds continuous measurement
Hand indication of north
Bidirectional calibration
Magnetic declination correction
Thermometer
Display range: -10 to 60℃ (14 to 140℉)
Display unit: 0.1℃ (0.2℉)
*Changeover between Celsius (℃) and Fahrenheit (℉)

World time
29 time zones (29 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping

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

Timer
Countdown timer
Measuring unit: 1 second
Countdown range: 60 minutes
Countdown start time setting range: 1 second to 60 minutes (1-minute increments)

Alarm/hourly time signal
5 daily alarms
Hourly time signal

Light
Double LED light
LED light for the face (Full auto LED light, selectable illumination duration, afterglow)
LED backlight for the digital display (Full auto LED light, selectable illumination duration, afterglow)
Light color
LED: White

Calendar
Full auto-calendar (to year 2099)

Mute feature
Button operation tone on/off

Hand home position correction feature
The auto hand home position correction

Energy saving feature
Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)

Battery display/alert
Battery level indicator

Run time
Approx. battery operating time:
6 months on rechargeable battery (operation period with normal use without exposure to light after charge)
25 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

Accuracy
Accuracy: ±15 seconds per month (with no signal calibration)

Other features
12/24-hour format
Hand shift feature (manual or auto (during altitude, barometric pressure, and temperature measurement))
Regular timekeeping:
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second)
Digital: Hour, minute, second, am/pm, month, date, day

Time adjustment details

Time Calibration Signals
Station name: DCF77 (Mainflingen, Germany)
Frequency: 77.5 kHz
Station name: MSF (Anthorn, England)
Frequency: 60.0 kHz
Station name: WWVB (Fort Collins, United States)
Frequency: 60.0 kHz
Station name: JJY (Fukushima, Fukuoka/Saga, Japan)
Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)
Station name: BPC (Shangqiu City, Henan Province, China)
Frequency: 68.5 kHz
Time calibration signal reception
Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful)
*5 times a day for the Chinese calibration signal
Manual receive
The latest signal reception results