Audemars Piguet 3120 Instruction manual - page 8
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tEcHNIcAL SpEcIfIcAtIoNS
of tHE MovEMENt
regulaTing organ
through balance bridge 1 :
guarantees high precision positioning of the
balance and greater degree of shock resistance, thus
ensuring greater timekeeping precision.
balance with 8 variable inertia blocks 2 :
balance with variable inertia moment thanks to
eight inertia blocks used to adjust the running of
the watch without altering the active length of the
balance-spring.
second stop lever for the time setting function 3 :
Pull the crown to the position for setting the time.
this activates the second stop lever. this allows you
to stop the second counter hand immediately and
set the precise time.
About t
HE
w
Atc
H
E
NGLISH
gear Train
a train produced according to aP quality standards
fulfils the following criteria :
Pinions are polished 1.
the pivots and sweep of the pivots are burnished.
the non-functional surfaces of the wheels are
gold-plated and adorned with a circular pattern 2,
the arms are bevelled and the edges are diamond-
tipped.
after being gold-plated, the teeth of the wheel are
milled to ensure a geometrically and functionally
flawless surface 3.
2
1
3
1
2
3