INFANTRY 51mm Big Face Mens Tactical Military Digital Watch Large Black Sports Wrist Watches for Men Dual Time: Dual-Precision JAPANESE quartz and digital movement, 12/24Hr military time Big Face: 51mm large watch case, Heavy-duty solid watch Multifunction: Alarm, Stopwatch, Day-Date-Month, Backlight Material: Soft and flexible silicone band. Anti-Scratch MINERAL dial window Perfect for all kinds of sports, indoor/ outdoor activities and daily use. NOT SUITABLE for shower, bath or swimming