2. A
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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 watch-
maker’s dream! - which facilitates maintenance
and prevents greasy paste build up af ter 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 met iculous
shape of the various components (especially the
guard pin) and their ultraprecise cut out provide
maximum security against tripping and over-
banking. This development has been patented by
Audemars Piguet.
0,4 mm
Dia. 1a
0,05 mm
Dia. 1b
Direct
impulse
Dia. 2b
Indirect
impulse
Dia. 2a
The need for oiling is eliminated by shortening the sliding
Fewer moving parts in the transmission equals greater efficiency
46
47
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