IWC Schaffhausen PORTUGIESER TOURBILLON RÉTROGRADE CHRONOGRAPH Mode D'emploi page 27

If your watch has a strap made of leather, textile or rubber with
a leather or textile inlay, make sure that the high-quality strap
does not come into contact with water, oily substances, solvents,
cleaning agents or cosmetic products. This way you can prevent
discoloration and premature ageing of the material.
H O W OF T E N SH O U L D MY WA T C H BE SE R V I C E D ?
The optimal service cycle for your IWC timepiece is exclusive to
your watch
necessary interval between services will be determined by your
individual wearing habits; frequency of wear, your environment/
s, and the intensity of physical activity you engage in. Your fine
mechanical timepiece is an extension of yourself and will run
well for as long and smoothly as it is treated. Therefore, we
simply recommend you to continue wearing your watch for as
long as pleases you and to only entrust it for a service if you
notice a deviation from the regular performance, function or
timekeeping. It will then be our pleasure to reinstate the
premium performance with the suitable service.
P O R T U G I E S E R 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
— 2 9 —
N O T E
and unique lifestyle. The