Complete with an eight-digit calculator and offering approximately five years of battery life, the Twincept Watch #CA53W-1 is sporty and resilient. This high-performance timepiece features a 1/100 second stop watch, dual time, daily alarm, hourly time signal, and automatic perpetual calendar. 12- and 24-hour formats keep your day on-track, while a battery life of approximately five years provides dependable performance. There's also a rugged resin strap with adjustable buckle for a comfortable, secure fit. Water resistance to 165 feet and a mineral crystal guards against wear and tear, while the precision of quartz movement ensures reliability.