Swiss Military Calibre Men's 06-4c2-13-007t6 Commando Black IP Tachymeter Chronograph Khaki Green Watch Sandblasted treatment on black ip case gives the watch a very rugged look Black checked pattern on dial Luminous indexes and numbers; sub-seconds Crown proudly displays the swiss cross Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving