A vintage Audemars Piguet tank in 18k yellow gold manual wind with a champagne roman numeral dial from the late 60s, early 70s. It keeps great time and is fully functional. Measurements include a 24mm x 32mm rectangle case and an 16mm lug width It's on its original AP black alligator leather strap with matching gold buckle. Matching black hands and roman numerals. Clean matte champagne dial. 18k yellow gold case and caseback. Reference or serial number on the snapback caseback: 51915. All parts including the dial, crown, and movement are original.