展开Smartwatch movement: features include perpetual calendar, 1 second chronograph, alarm, dual time, 12/24 hour time, power reserve indicator, and light level indicator. iPhone and Android features include time/date sync and phone search and filtering. Visual vibration alerts for email, phone, calendar, social media, and connection loss. Black chronograph display with silver-tone stick indices, three hands, three subdials, date window, and Citizen logo. Round case, 46mm. Compatible with iPhone and Android. Stainless steel bracelet. Water resistant to 100 meters. 5-year limited manufacturer's warranty, with an additional 1-year warranty upon registering your watch with Citizen.