Audemars Piguet Jules Audemars 26153OR.OO.D088CR.01 Instructions For Use Manual - page 9
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About t
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high efficiency : with the conventional swiss
lever system, the escapement absorbs around
70% of the energy; the new aP system reduces
this figure to 50%, enabling a significant boost
in efficiency over traditional designs.
no lubrication on the lifts (dia. 1a and 1b) :
the special geometry of the audemars Piguet
escapement means no lubrication - a watchmaker’s
dream ! - which facilitates maintenance and
prevents greasy paste build up after oil evaporation.
direct impulse on balance (dia. 2a and 2b) : energy
is transmitted directly from the escapement to the
balance without passing through a pallet fork,
which limits energy losses by improving efficiency.
excellent shock resistance : the meticulous shape of
the various components (especially the guard pin)
and their ultraprecise cut out provide maximum
security against tripping and over-banking.
0.4 mm
dia. 1a
0.05 mm
dia. 1b
dia. 2b
direct
impulse
indirect
impulse
dia. 2a
the need to lubricate the fork pallets is eliminated by shortening
the sliding.
fewer moving parts in the transmission equals greater efficiency