Casio Edifice x Smartphone Link ft. Octagonal Men Casual Formal Hexagon 100m Water Resistant Watch ECB-10DB-1A9 ECB10DB ECB10 ECB-10 ECB-10DBExperience seamless connectivity with our advanced metal chronograph, featuring an octagonal bezel design. Link to your smartphone via Bluetooth and access convenient features like schedule timers and automatic time correction, all while maintaining a stylish and high-performance timepiece.Module / Movement5618 (quartz)Battery Life / AccuracyApproximately 2 years (+/-15 seconds per month)CrystalMineral crystalLuminous / LightLuminous on hands and indexesDouble LED light (auto LED light, super illuminator, selectable illumination duration, afterglow)Case / Band MaterialStainless steel case with metal band (three-fold clasp with push-button release)Water Resistance100m / 10 barCase SizeThickness: 12.5 mmDiameter: 48.5 mmLength: 51.0 mmOther SpecificationsCasio Edifice x Smartphone Link ft. OctagonalMobile link (wireless linking via Bluetooth)World time (38 time zones, daylight saving on/off, auto summer time, 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 alarmsHourly time signalFull auto-calendar (to year 2099)Button operation tone on/off12/24-hour formatDate/month display swappingDay 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 modeSchedule beeper on/offRegular timekeeping (analog-digital display)