Features: carbon composite case resin strap tough solar caliber: 5689 mineral crystal black dial analog digital display shock resistant carbon core guard structure mobile link auto time adjustment easy watch setting approximately 300 world time cities time & place reminder phone finder neobrite world time 1/100-second stopwatch countdown timer 5 daily alarms hourly time signal double led light full auto-calendar button operation tone on/off power saving battery level indicator hand shift feature regular timekeeping 12/24 hours display luminous hands month, day and date display screwed case back buckle clasp 200m water resistance approximate case diameter: 45.4mm approximate case thickness: 11.9mm