Audemars Piguet Jules Audemars 26153OR.OO.D088CR.01 Instructions For Use Manual - page 10
Manual is about: JULES AUDEMARS CHRONOMETER WITH AP ESCAPEMENT
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About t
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duAL bALANcE-SprING
the calibre 2908 also stands out for its totally
new regulator component. two balance-springs
positioned one on top of the other, offset by 180°,
automatically compensate for any balancing defects.
undoubTed adVanTages
the system of dual “opposing” flat balance-springs
has many advantages :
no more balance-spring “end curves” pioneered
by breguet and Phillips, which require painstaking
construction, and thus the end to defects caused by
the slight asymmetric balance-spring development.
automatic compensation for any balance-spring
balancing defects, thus improving accuracy.
prevents errors caused by the watch’s vertical
position.