Casio GDF100-1B G Shock Twin Sensor Black Resin Band Watch


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About Casio GDF100-1B G Shock Twin Sensor Black Resin Band Watch

This totally new design for G-Shock comes packed with altimeter, barometer and thermometer, plus a powerful collection of additional features. Its design has been carefully crafted to incorporate a number of basic elements that reflect G-Shock's unique individuality.

The Altimeter function has a measuring range of -2,300' to 32,800' (-700 to 10,000 meters) without reference altitude, a measuring unit of 20' (5 meters) and a reference altitude setting, The Barometer display range is 7.56 to 32.45 inches of Mercury (Hg)/260 to 1,100 hPa and has display units of 0.05 inches of Hg (1 hPa). The Barometer also has atmospheric differential pointer. The Thermometer has a Display Range of 14°F to 140°F (-10°C to 60°C) and will Display in 0.2°F (0.1°C) Units.

The World Time Function has 31 Times Zones (48 cities) and Displays City Code and has a Daylight Savings On/Off Function. The 1/100 Second Stopwatch has a Measuring Capacity of 23:59'59:99 with Measuring Modes for Elapsed Time, Split Time and First & Second Place Times. The Countdown Timer Function measures in 1-Second Units and has a Countdown Range of 1-Minute to 24-Hours (1 hour increments and 1 minute increments).

Watch is Shock Resistant, Water Resistant to 660' (200 meters), has LED Backlight (Super Illuminator), 5 Daily Alarms and an Hourly Time Signal Function. This G Shock Timekeeper is equipped with a Full Auto Calendar (Pre-programmed until the year 2099), can be set for 12/24 Hour Formats, has a Button Operation Tone On/Off Function with an Accuracy of +/- 15 Seconds per Month (with no signal calibration). Watch is powered by a CR2025 Battery with an Approximate Battery Life of 5 Years. The Case and Band are made of Resin and the Crystal is Mineral Glass. The Case measures 2.17" x 2.03" x 0.68" (55.0 x 51.5 x 17.2 mm) and has a total weight of 2.44 oz (69.2 g). Watch comes with a Comprehensive Owner's Guide and is covered by a 12 month limited warranty.

Warranty Information

This product has a limited warranty of 12 months.
(800) 435-7732

Casio GDF100-1B G Shock Twin Sensor Black Resin Band Watch Features

  • Casio G Shock Twin Sensor Watch
  • Shock Resistant
  • 660' (200 meters) Water Resistant
  • LED Backlight (Super Illuminator)
  • Altimeter:
  • Measuring Range: -2,300' to 32,800' (-700 to 10,000 meters)
  • Measuring Unit: 20' (5 meters)
  • Reference Altitude Setting
  • Barometer:
  • Display Range: 7.65" to 32.45" Hg (260 to 1,100 hPa)
  • Display Unit: 0.05" Hg (1 hPa)
  • Atmospheric Pressure Differential Pointer
  • Thermometer:
  • Display Range: 14°F to 140° F (-10°C to 60° C)
  • Display Unit: 0.2° F (0.1° C)
  • World Time:
  • 31 Time Zones (48 cities)
  • City Code Display and Daylight Saving On/Off
  • 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)
  • Others:
  • 5 Daily Alarms
  • Hourly Time Signal
  • Full Auto Calendar (Pre-programmed until the year 2099)
  • 12/24 Hour Formats
  • Button Operation Tone On/Off
  • Accuracy: +/- 15 Seconds per Month (with no signal calibration)
  • Battery: CR2025
  • Approximate Battery Life: 5 Years
  • Mineral Glass Crystal
  • Resin Case and Band
  • Case Dimensions: 2.17" x 2.03" x 0.68" (55.0 x 51.5 x 17.2 mm)
  • Total Weight: 2.44 oz (69.2 g)
  • Comprehensive Owner's Manual
  • 1 Year Limited Warranty

Casio GDF100-1B G Shock Twin Sensor Black Resin Band Watch Specifications

Gender Design
Case Material:
Case Size:
2.17" X 2.03" X 0.68" (55.0 X 51.5 X 17.2 Mm)
Crystal Type:
Mineral Glass
Water Resistant:
660' (200 Meters)
Band Material:
Mfr #
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