Swiss Military Calibre Men's 06-4C2-04-007T Commando Tachymeter Chronograph Luminous Date Black Dial Watch Sandblasted treatment on 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