The original Hamilton Frogman was created for U.S. Naval 'Frogman' teams and featured in the 1951 movie "The Frogmen." This men's watch features a stainless steel case, uni-directional rotating bezel, black dial, second hand, and date window. Other features include underwater luminescence, a sapphire crystal, and water-resistance to 300m. The black rubber strap secures with a buckle clasp.