Audemars Piguet 2326 Instructions For Use Manual - page 7
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To prevent overtensioning, the barrel spring is
released at just the right moment by a sophisticated
system.
The tachometer
In watchmaking, the tachometer is a graduated dial
that allows you to determine the average speed taken
to cover a given distance, generally 1,000 metres.
This speed is usually expressed in km/h and is read
directly on the dial via the chronograph hand.
Your watch allows you to read speeds from 60 to
500km/h.
1. Intr
oduction
Eng
lis
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The 2326/2840 automatic Chronograph
The Manufacture Audemars Piguet introduces the
calibre 2326/2840 - with a self-winding movement,
digital date display and chronograph. It combines
functionality with aesthetics and the highest level of
refinement in the watchmaker's art.
The automatic Chronograph
Circumstances and events regularly cause us to measure
a fixed amount of time between two actions. This
makes the chronograph an indispensable instrument.
It was invented by two watchmakers from the Vallée de
Joux, Henri-Féréol Piguet and Adolphe Nicole, who
devised and created the system.
The Audemars Piguet Chronograph is a wrist watch
which rewinds automatically. The movements of the
wearer’s wrist generate the energy required for it to
function.
This energy, harnessed by a 21 carat gold oscillating
weight, is transmitted to the mainspring by a gear-
train.
As it gradually winds around the barrel-arbor, the
spring accumulates energy that is then transmitted
to the watch movement at a steady rate.
The maximum power reserve is reached
after a period of time varying from
several hours to some days, depending
on the owner and the amount of
physical activity.