The new GBX100 models are the latest additions to the G-LIDE lineup of G-SHOCK sports watches, which are a favorite choice among the world's top surfers. These new models come with the ability to display information required by surfers (high tide and low tide times and levels), and to use a phone application for simple selection of one of approximately 3,300 locations around the globe. The wide face and a high-definition MIP (Memory In Pixel) LCD improves display readability of standard functions like Tide Graph, Moon Data, high tide and low tide times, and sunrise and sunset times. This provides important information about current conditions at a glance, which, in combination with a collection of training measurement functions (distance, speed, pace, lap, pitch), provides plenty of support for surfers who meet new challenges around the globe. In addition to powerful functions, these new models also incorporate advances in design, structure, and materials. The bezels of these models are made of resin and metal to allow them to withstand the impact of underwater rocks better. The surface of the bezel has a stainless steel cover with a hairline and honed finish that creates a look of elegant toughness. A resin guard structure that protects against impact from any direction combines with a button guard at 6 o'clock, which delivers outstanding G-SHOCK protection. The end of the soft urethane band at 6 o'clock has slits to allow the draining of water and sweat for improved comfort. Case / bezel material: Resin / Stainless Steel Resin Band Shock Resistant 200 Meter Water Resistant LED backlight (Super illuminator) Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds),afterglow Mobile link (Wireless linking using Bluetooth®) Training Function Display of distance, speed, pace, and other calculated values based on accelerometer, auto/manual lap times, Auto Pause, target alert setting (time, calories burned) on/off, training display customization (elapsed time, distance, pace, lap time, lap distance, lap pace, average pace, speed, average speed, calories burned) Training Data (Up to 100 runs, up to 140 lap times per run) Elapsed time, distance, pace, calories burned Life Log Data Daily data display (step count), Monthly data display (running distance) User profile creation Flight mode Moon data (moon age of the specific date, moon phase) Tide graph (tide level for specific date and time) Sunrise, sunset time display Sunrise time and sunset time for specific date, daylight pointers World time 38 time zones* (38 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching *May be updated when connected to a smartphone. 1-second stopwatch Measuring capacity: 99:59'59'' Measuring modes: Elapsed time, split time Countdown timer Timer for interval measurement (up to five time settings) Measuring unit: 1 second Input range: 00'00" to 60'00" (1-second increments) Others: Auto-repeat (number of repeats settable from 1 to 20) Vibration Alarm 4 daily alarms with snooze Power Saving (Display goes blank to save power 3 hours per day.) Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Vibration on/off Regular timekeeping: Hour, minute, second, am, pm, month, date, day Accuracy: ±15 seconds per month (with no mobile link function) Approx. battery life: 2 years on CR2032 Size of case / total weight 50.9 x 46.0 x 14.7 mm / 66 g