Function-wise, this model comes with compass, altimeter/barometer, temperature reader and pedometer. In addition to being able to easily correct the time using the dedicated CASIO WATCHES app, there are lots of other useful features including the Mission Log feature, which automatically records in the app altitude data obtained from the watch and route data obtained by your smartphone. The atmospheric pressure tendency graph can show the last 20 minutes or last 56 minutes of measurements. The hand indication of pressure differential shows values in units of ±1 hPa. Casio state that the watch has a +/- 15 seconds per month. I find with many Japanese manufacturers they understate their accuracy and given that the watch synchs with your app you’ll usually always have total accuracy for the current time wherever you are. Size and Fit The watch can act as a GMT world timer watch with 38 timezones including pilots UTC universal time. It also comes with a sunrise and sunset indicator which is very useful when out on trails. Stopwatch For the tactical professional or serious enthusiast, the GWG1000-1A1 is tough to beat. It comes with Multi-Band 6 Atomic Timekeeping and Triple Sensor capabilities (altimeter/barometer, compass, and thermometer), ensuring that you're never off-course. The Vibration Resistant Structure adds an extra layer of durability, especially for those in seismic research fields or construction.

What we like in GG-B100 *comments by experts with 10years experience in writing about Casio watches Measuring Capacity: 24 hours, Measuring Modes: Elapsed time, split time, 1st-2nd place times, Measuring Unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Best characteristic of watch: Excellent mix of form and function. New case construction and materials are clear upgrade. Legible, attractive dial. Enjoyable to use interface and functions. Step counter adds way for consumer to engage with the watch. Mud Resistant (helps to ensure that nothing gets into the watch when down and dirty work takes you deep into the dirt and sludge)

Reviews

This watch is nearly perfect in my honest opinion. If it had the multiband 6 and tough solar this watch would be pretty much unbeatable. I don’t need this to be a fitness watch so all the functions it has is all that’s really needed.. If Casio ended up adding the atomic and solar in the future I would buy one in each color way. Step count (A built-in 3-axis acceleration sensor begins counting steps the moment you start to walk.) Designed to work even in the harshest environments, MASTER of G specialty watches take timekeeping to new heights with a rugged design accented in the bright yellow used for emergency rescues.

The button tones on the mode button can be switched off for discreet operation. Pre-set alarm or timer functions remain active. Measuring Modes: Elapsed time, split time, 1st-2nd place times, Measuring Unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes)A built-in direction sensor detects magnetic north displaying both this and your current direction on the watch face., Bearing Display: Indicates your course against a recorded bearing, Measuring Range: 0 - 359 degrees, Measuring Unit: 1 degree Countdown start time setting range: 1 second to 24 hours (1-minute increments and 1-hour increments) Part of the specialist Master of G series designed for use in the most extreme conditions, our new GG-B100 watches feature the all-new Carbon Core Guard case, with a dust and mud-resistant structure that can withstand harsh land environments.

The watch features a double LED light which is surprisingly powerful but only stays on for a 3 second burst. The hands of the watch also have lume applied so they remain visible for a long period during the night even without using the LED light to read the time. Bluetooth ConnectivityThe thermometer gives you an accurate read of the current temperature which again you can customize in the app for Celsius or Fahrenheit. Technological Prowess: Loaded with features like atomic timekeeping, solar power options, and world time, these watches are as smart as they are tough. time zones (38 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping A built-in pressure sensor measures barometric pressure, which is converted to relative altitude, Altitude Graph: Changes in altitude are represented by a graph on the watch face, Measuring range: -700 to 10,000m (-2,300 to 32,800ft), Measuring unit: 1 metre (or 5ft) Daily Alarms: Each will sound every day at the time you set, Hourly time signal: The watch beeps every hour on the hour