A very sober watch in only two tonalities, the Master Compressor Diving Automatic Navy Seals has a stainless steel rectangular-framed case whose shape disguises the bezel of the same material but with a black finish, the rubber strap has the same color. Size: 42 mm. Case: Stainless steel. Bracelet: Articulated rubber. Type of movement: Mechanical automatic winding, 219 parts, 28’800 vibrations per hour, 38 hours power-reserve.