I have heard that micro rotors are not very efficient at winding due to lacking the weight of a full sized rotor. In some ways I can see how this makes sense, in other ways I can't.
This beauty will be sold by Sotheby's next May 10th. Patek Philippe Retrograde Perpetual Calendar Minute Repeater ref. 5013 . 35 x 46 mm pink (above) or yellow (below) gold case (width x length including lugs) Caliber R29 PS-QR credit: @benoit.watches (1) & The Keystone (2-3) Tonneau shape, two wond