The Patek Philippe Ref. 5101R Ten day Tourbillon Video

Patek Philippe has created a very interesting video on the Patek Philippe Ref. 5101R Ten Day Tourbillon. This is a fascinating timepiece. Six years ago, Patek Philippe outdistanced itself from all other Swiss watch makers by introducing the Ref. 5101 in platinum. The rectangular timepiece features two mainspring barrels for a power reserve of 10 days and a tourbillion escapement. To this very day it is the only crown- wound wristwatch with such an autonomy.