Six years ago, Patek Philippe outdistanced itself from all other Swiss watch makers by introducing the Patek Philippe Ref. 5101. The rectangular timepiece in platinum features two mainspring barrels for a power reserve of 10 days, and a tourbillon escapement. To this very day it is the only crown-wound wristwatch with such an extended autonomy. The striking rectangular form in the art deco style is reminiscent of the classic of the 1920s and 1930s.