iwc IW5007 Operating Instruction page 18

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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 O r t u g i e s e r a u t O M a t i c
Your IWC watch shows you the time in hours, minutes and sec-
onds together with the date and the power reserve. The watch is
water-resistant 3 bar and protected by a convex sapphire glass
of hardness grade 9 on Mohs' scale. The mechanical movement
with automatic winding has a power reserve of approximately
7 days (168 hours) when fully wound. The engraved rotor with
18-carat gold medallion winds the watch in both directions of ro-
tation via the Pellaton winding mechanism. To ensure that this
extraordinary watch continues to perform faultlessly in the future,
it is essential to observe a few important operating instructions.
p O r t u g i e s e r a u t O M a t i c