Waterproof men's wristwatch with altimeter Casio G-Shock GDF-100-1A

Waterproof Men's Wristwatch with Altimeter Sensor Casio G-Shock GDF-100-1A

The original Japanese wristwatch from the legendary shock-resistant G-Shock series is a high-tech device created for extreme tourism, sports, and everyday use in harsh conditions. The case and strap of this model are made from durable polymer material, which effectively absorbs shocks and protects the internal quartz mechanism from vibrations, falls from heights, and mechanical impacts. The massive bezel design with special button protectors prevents accidental pressing during active hand movements or when wearing tight outerwear. The durable mineral glass is deeply recessed into the case, fully protecting it from scratches and chips when the watch comes into contact with hard flat surfaces. The high level of case sealing allows the device to be used during swimming, diving, and water sports without risking damage to the electronic board.

Integrated Twin Sensor Dual Sensor System

The main structural feature of the chronometer is the presence of a built-in dual micro-sensor, which measures key environmental parameters in real-time. On the left side of the case, there is a special protective sensor protrusion that ensures unobstructed air access for accurate analysis of atmospheric physical indicators.

The built-in measurement system provides the user with important navigational and meteorological data:

• Atmospheric pressure is displayed on the digital display in hectopascals, allowing for weather condition forecasts for the coming hours.

• The altimeter determines the current altitude above sea level based on pressure fluctuations, which is necessary for mountain hiking.

• The thermometer records the exact ambient air temperature in degrees Celsius, maintaining functionality even in severe frost.

All obtained metrics are displayed on a segmented liquid crystal screen, divided into graphic and digital zones for quick information reading on the move.

Functional Equipment and Energy Efficiency

The model is equipped with a bright Super Illuminator LED backlight, which is activated by pressing the front button with the series' branded logo and evenly illuminates the entire dial in complete darkness. The automatic backlight function turns on the screen illumination when the hand is tilted towards the face, freeing the other hand while driving or carrying equipment.

The electronic module of the chronometer supports a full range of classic and specialized watch functions:

• World time displaying the current hour in major cities and time zones of the planet for convenience during frequent flights.

• Professional split-second stopwatch with measurement accuracy up to hundredths of a second and a built-in countdown timer.

• Five independent daily sound alarms, one of which is equipped with a repeat signal function at specific intervals.

The lithium battery provides uninterrupted power to all sensors and the display for an extended period, eliminating the need for frequent battery replacements. The automatic calendar independently accounts for the number of days in months of varying lengths and leap years, maintaining accurate date display.

Product Specifications

• Brand: Casio

• Brand Registration Country: Japan

• Material: polymer plastic, mineral glass, stainless steel

• Size: case width 51.5 mm, height 55.0 mm, thickness 17.2 mm

• Color: black, red, gray

• Weight: 69.2 g

• Gender: for men

• Condition: new

• Volume: 1 piece

• Product Group: wristwatches, men's watches, sports watches

• Purpose: displaying accurate time, date, measuring atmospheric pressure, air temperature, and altitude above sea level

• Compatibility: standard polymer and fabric straps Casio G-Shock with 16 mm attachment width, CR2025 battery type

• Features: shock-resistant case Shock Resist, dual sensor Twin Sensor, water resistance 20 Bar (200 meters), Super Illuminator LED backlight, resistance to low temperatures down to -10 °C

• Factory Article (MPN): GDF100-1A

• Barcode (UPC): 079767936983

• Movement Type: electronic quartz

• Display Type: digital (electronic)

• Accuracy: plus-minus 15 seconds per month

• Time Format: 12-hour, 24-hour