IWC Schaffhausen Fliegeruhr Mark XVII Instrucciones De Manejo página 20

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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
p i l O t ' s W a t c h M a r k X V i i
Your IWC watch shows you the time in hours, minutes and sec-
onds together with the date. The mechanical movement with
auto matic winding has a power reserve of approximately 42 hours
when fully wound. Your Pilot's Watch Mark XVII is protected by a
sapphire glass of hardness grade 9 on Mohs' scale. The glass is
retained securely in the case at low pressure, for example when
a drop in air pressure occurs at extreme altitudes. Your watch is
water-resistant 6 bar. The soft-iron inner case provides protection
against magnetic fields. To ensure that this extraordinary watch
continues to perform faultlessly in the future, it is essential to ob-
serve a few important operating instructions.
p i l O t ' s W a t c h M a r k X V i i
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