audemars piguet pre-owned royal oak from 2004, ref. 20008027, case size approximately 36mm, black stainless steel octagonal face with baton dial and baton hands, featuring date indication and screw-down crown, adjustable link bracelet with concealed clasp fastening, automatic mechanical movement, supplied with original box, papers, certificate of authenticity from chronext, including two-year warranty covering all movement repairs and water damage fixes for the waterproof case.