In 2006 the manufacture introduced a new escapement that functioned
at a less frenetic 21,600 vph, but even at that time tests had shown
that the AP escapement was capable of running perfectly at 43,200 vph
or 6 hertz-even without the lubrication of the pallet stones, which
would quickly dissipate at that speed anyway. The omission of lubricant
solves an issue which has plagued watchmakers provided mechanical
timepieces have endured: gumming or hardening on the oil.
This fresh escapement will depend on an invention by Parisian royal
clockmaker Robert Robin (1742-1799). He developed a new system in 1791
that combined the virtues of the two well-known escapements for the day,
so-called free-sprung escapement and one including energy transfer via
pallet fork and guard pin part of the precursor towards the modern Swiss
lever escapement as invented by Thosmas Mudge in 1759.
Audemars Piguet has succeeded in securing the aspects of both systems
in its new high-frequency escapement, solving the oil problem and
introducing the latest and important aspect of the overall game: rate
precision.”mehr sehen uhren replika und Bvlgari Rettangolo
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