This is a significant wristwatch in the history of watchmaking: the Audemars Piguet Jules Audemars series model 25718BA, the world's first self-winding tourbillon wristwatch, integrating power reserve and pointer date, belongs to the classic complex series of Audemars Piguet paying tribute to its founder Jules Audemars. Diameter:39mm, 18K gold case, spherical lugs are the signature appearance of this series. 2875 automatic winding tourbillon movement, 41 jewels, one-minute tourbillon, 65-hour power reserve, the movement is extensively hand-polished and decorated.