Solar powered,Neobrite,Tachymeter,100m WR, Mobile link (Wireless linking using Bluetooth),Airplane mode,Dual time,Stopwatch,Alarm,Low battery alert Full auto-calendar, Power Saving,Date display, Regular timekeeping, Approx. battery operating time: 8 months on rechargeable battery Quartz Movement Case Diameter: 52mm Water resistant to 100m (330ft): in general, suitable for swimming and snorkeling, but not diving