Audemars Piguet. A stainless steel and 18K gold quartz bracelet watch Royal Oak, Ref 6005SA Jumbo, Circa 1980Audemars Piguet. A stainless steel and 18K gold quartz bracelet watchModel: Royal OakReference: 6005SA JumboDate: Circa 1980Movement: 11-jewel Cal.2511 quartz, No.241974Dial: Grey tapisserie grid, applied gilt baton hour markers with luminous inserts, gilt baton hands with luminous insertsCase: Brushed and polished rectangular form, back secured by 6 screws, No.B83343Strap/Bracelet: Brushed steel and gold linkBuckle/Clasp: Signed folding claspSigned: Case, dial & movementSize: 32mm x 41mmWhen Audemars Piguet introduced the Royal Oak in the early 1970s it soon became the life saver and keystone for the brand, and furthermore revolutionized the industry with the new notion of "high-end sport watch". By the 1980's when quartz watches were becoming more popular Audemars Piguet released the reference 6005. Whilst featuring a rectangular case shape different from the typical Royal Oak, the reference stays true to the original Genta design with the iconic integrated bracelet and tapisserie dial.