Casio Edifice x ECB-20 Series ft. Smartphone Link Men Formal Round 100m Water Resistant Watch ECB-20DB-1A ECB20DB ECB20 ECB-20 ECB-20DB Discover the Casio Edifice ECB-20 series, where motorsport-inspired attitude meets bold contemporary design. Its striking round bezel, exposed four-screw detailing and vibrant inner-dial accents create a powerful mechanical aesthetic, while the layered chronograph face adds depth and visual energy. A distinctive Edifice timepiece crafted for those who appreciate speed, precision and automotive style. Module / Movement 5638 (quartz) Battery Life / Accuracy Approximately 2 years (+/-15 seconds per month without mobile link function) Crystal Mineral crystal Light Double LED light (auto LED light, super illuminator, selectable illumination duration, afterglow) Case / Band Material Stainless steel case with stainless steel band (three-fold clasp with push-button release) Water Resistance 100m / 10 bar Case Size Thickness: 12.5 mm Diameter: 46.0 mm Length: 49.5 mm Lug width: 22.0 mm Other Specifications Casio Edifice x ECB-20 Series ft. Smartphone Link World time (38 time zones, daylight saving on/off, auto summer time switching, home/world time city swapping) 1/1000-second stopwatch (up to 24 hours, elapsed time, lap time) 1-second countdown timer (up to 24 hours) 5 daily alarms Hourly time signal Full auto-calendar (to year 2099) Button operation tone on/off 12/24-hour format Date/month display swapping Day display (days of the week selectable in six languages) Hand shift feature (hands move out of the way to provide an unobstructed view of digital display contents) Flight mode Schedule beeper on/off Regular timekeeping (analog-digital display) Smartphone Link / App Connectivity Features Mobile link (wireless linking via Bluetooth) Auto time adjustment Easy watch setting Approximately 300 world time cities Stopwatch data transfer Schedule timer Phone finder