TechnoMarine Men's 109010SET Cruise Magnum Chrono Interchangeable Straps WatchSet Precise Japanese Miyota OS60 Quartz movement Chronograph functions with 12-hour, 60-minute, and 1/20th second subdials Tachymeter feature on inner chapter ring & date function at 4:00 position Comes with additional Black, Blue and Red gel straps and covers Water resistant to 660 feet (200 M): suitable for recreational scuba diving