Audemars Piguet (Renaud et Papi) SA
Audemars Piguet (Renaud et Papi) SA Patent applications | ||
Patent application number | Title | Published |
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20140056113 | TIMEPIECE MOVEMENT WITH POWER RESERVE FOR EXTENDED OPERATION - A mechanical timepiece movement, including a spiral spring, a barrel, the spiral spring accommodated in the barrel as an energy storage, the barrel transmitting energy of the spiral spring by a gear train to an oscillator, the oscillator including a balance as a regulating device, and a mechanism configured to reduce a torque generated by the barrel to reduce loss of energy stored in the spiral spring. | 02-27-2014 |