Casio G-Shock GDF100 Twin Sensor

The G-Shock GDF100 Twin Sensor model is packed with features including an altimeter, barometer and thermometer. It also sports a fresh new G-Shock case design.

Tech Specs:
Shock Resistant, 200M Water Resistant, LED Backlight (Super Illuminator), Altimeter, Measuring range: -700 to 10,000m (-2,300 to 32,800ft) without reference altitude, Measuring unit: 5m (20ft), Others: Reference altitude setting, Barometer, Display range: 260 to 1,100 hPa (7.65 to 32.45 inHg), Display unit: 1 hPa (0.05 inHg), Atmospheric pressure differential pointer, Thermometer, Display range: -10 to 60 C (14 to 140 F), Display unit: 0.1 C (0.2 F), World Time, 31 times zones (48 cities), city code display, daylight saving on/off, 5 Daily Alarms, Hourly Time Signal, 1/100 second stopwatch, Measuring capacity: 23:59'59.99", Measuring modes: Elapsed time, split time, 1st-2nd place times, Countdown Timer, Measuring unit: 1 second, Countdown range: 1 minute to 24 hours (1 hour increments and 1 minute increments), Full Auto Calendar (pre-programmed until the year 2099), 12/24 Hour Formats, Button tone operation on/off, Accuracy: +/-15 seconds per month (with no signal calibration), Battery: CR2025, Approx. battery life: 5 years, Module: 3255

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