Casio Edifice x Sospensione ft. Motorsports Men Casual Formal Round 100m Water Resistant Watch ECB-40BK-1A ECB40BK ECB40 ECB-40 ECB-40BK Experience the ultimate racing-inspired timepiece, featuring a lightweight yet strong carbon fiber reinforced resin case, Smartphone Link for precision timekeeping, and high-luminosity LED display. Perfect for racing enthusiasts and professionals alike, this innovative watch combines style and functionality. Battery Life / Accuracy Approximately 2 years (+/-15 seconds per month) Crystal Mineral crystal Luminous / Light Luminous on hands and indexes Double LED light (auto LED light, super illuminator, selectable illumination duration, afterglow) Case & Band Material Carbon / stainless steel case with metal band (three-fold clasp with push-button release) Water Resistance 100m / 10 bar Case Size Thickness: 12.7 mm Diameter: 48.0 mm Length: 52.4 mm Other Specifications Casio Edifice x Sospensione ft. Motorsports Mobile link (wireless linking via Bluetooth®) Auto time adjustment Easy watch setting Approximately 300 world time cities Stopwatch data transfer Time & place Phone finder World time (38 time zones) 1/100-second stopwatch Countdown timer 5 daily alarms Hourly time signal Full auto-calendar (to year 2099) Button operation tone on/off Hand shift feature 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-digital display)