Welcome to the evolution of Speed & Intelligence — the high-spec, high-tech beauty of the EDIFICE metal chronograph with serious style and effortless smartphone connectivity. With this model, it’s a snap to sync with your smartphone via Bluetooth® and tap into the CASIO WATCHES app for full functionality at your fingertips. The app ensures button-free precision timekeeping when your phone is near. Developed to meet the needs of racing teams, the schedule timer syncs with your smartphone’s calendar app to transmit schedule items to the phone and display start and end times on the watch’s LCD. Equipped with LED light that illuminates with just a tilt of the wrist. Inspired by the sports car, the mechanical face design enhances depth and dimensionality to evoke the dynamic look, strength, and solidity of these high-performance vehicles. Case size (L× W× H) 52.3 × 48.7 × 12.9 mm Weight 148 g Case and bezel material Stainless steel Band Stainless Steel Band One-touch 3-fold Clasp Water resistance 100-meter water resistance Power supply and battery life Approx. battery life: 2 years on CR2016 Smartphone Link/App Connectivity Features Smartphone Link feature Mobile link (Automatic connection, wireless linking using Bluetooth®) Apps CASIO WATCHES App connectivity feature Auto time adjustment Easy watch setting Approximately 300 world time cities Stopwatch data transfer Schedule timer Phone finder Exterior Glass Mineral Glass Surface treatment Blue ion plated bezel Compatible band size 150 to 205 mm Watch Features World time World time 38 time zones (38 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping Stopwatch 1/1000-second stopwatch Measuring capacity: 00'00''000~59'59''999 (for the first 60 minutes) 1:00'00''0~23:59'59''9 (after 60 minutes) Measuring unit: 1/1000 second (for the first 60 minutes) 1/10 second (after 60 minutes) Measuring modes: Elapsed time, lap time Timer Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Alarm/hourly time signal 5 daily alarms Hourly time signal Light Double LED light LED light for the face (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) Light color LED:White Calendar Full auto-calendar (to year 2099) Mute feature Button operation tone on/off Accuracy Accuracy: ±15 seconds per month (with no mobile link function) Other features Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.) Airplane mode 12/24-hour format Schedule beeper on/off Date/month display swapping Day display (days of the week selectable in six languages) Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (linked to each mode) Digital: Hour, minute, second, pm, month, date, day