Audemars Piguet 26223RO.OO.D010CA.01 Instructions For Use Manual - page 9
44
45
About the watch
twIN-barrEL SyStEM −
pOwEr rESErvE
calibres 2895 and 2941 have a power reserve of
237 hours (about ten days). This endurance is
achieved by a large-diameter, twin-barrel system
developed by Audemars Piguet, with a stopwork
mechanism guaranteeing optimum performances.
energy aT iTs besT
The fast-rotating twin-barrel system – with a
maximum number of revolutions restricted to 19.75
by the stopwork device – enables approximately
10 days of autonomy and improved timekeeping. in
reality the two barrels fitted in parallel produce a
power reserve of 12 days. but an ingenious blocking
system - in the high (c-d, see graph below) and low
(A-b, see graph below) load zones - concentrates
the watch rate on the 10 median running days, with
the most regular (b-c, see graph below) providing
optimum efficiency.
This specific feature
transmits the energy
far more gently and
regularly to the wheels,
thus ensuring optimum
efficiency and therefore
greater rate accuracy
and reliability.
The double cone
The power-reserve indicator benefits from two other
unprecedented developments that guarantee reliable
and accurate display thanks to perfect adjustment
and permanent winding of the indicator hand.
The power-reserve indicator with double inverted
cone transmission was developed by Audemars
Piguet.
The Manufacture has now adapted this system to
a wristwatch format, enabling extremely accurate
adjustment of the amplitude of the indicator hand.
A beryllium copper alloy cone moves up and
down the barrel-arbor according to the degree of
winding of the watch; when the position is low, the
barrel is fully wound, and vice versa. in contact
with this mobile cone, a second cone, also coated
in amorphous carbon, picks up this information to
transmit it to the power-reserve indicator hand at
12 o’clock.
The planetary differential type gear limits the choice
of positioning for the power-reserve hand, while
the cone transmission system provides more scope
thanks to the lever.
10 jours
10 days
10 Tage
10 giorni
10 días
10
dias
10
дней
10
日
10
天
1 jour
1 jour
1 day
1 day
1 Tag
1 Tag
1 giorno
1 giorno
1 día
1 día
1 dia
1 dia
1
день
1
день
1
日
1
日
1
天
1
天
ENGLISH