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T H E T E C H N I C A L R E F I N E M E N T S O F T H E D A V I N C I
T O U R B I L L O N R É T R O G R A D E C H R O N O G R A P H
Your IWC watch shows you the time in hours and minutes and the
retrograde date. You can use the integrated flyback chronograph
to measure any period of time in seconds, minutes and hours.
Stop times can be added together. The mechanical movement
with automatic winding has a power reserve of approximately
68 hours when fully wound. Your Da Vinci Tourbillon Rétrograde
Chronograph is protected by an arched-edge sapphire glass
of hardness grade 9 on Mohs' scale. Your watch is shockproof
and water-resistant 3 bar. The engraved rotor made of 18-carat
red gold winds the watch in both directions of rotation via IWC's
double-pawl winding. Your watch is equipped with a flying minute
tourbillon, a unique micro-mechanism that minimizes the effect of
gravity on the accuracy. The tourbillon, an invention made in the
aftermath of the French Revolution, has always been regarded
as the ultimate challenge in the quest for absolute mech anical
watchmaking precision. More specifically, the purpose of the
mechanism is to counterbalance the one-sided pull of the earth's
gravity on the balance. This is because the residual gravitational
D A V I N C I T O U R B I L L O N R É T R O G R A D E C H R O N O G R A P H
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