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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 O F I N O H A N D - W O U N D E I G H T D A Y S
Your IWC watch shows you the time in hours, minutes and sec-
onds, together with the date and the power reserve. The mech-
anical movement has a power reserve of approximately 8 days
(192 hours) when fully wound. Your Portofino Hand-Wound Eight
Days is protected by an arched-edge sapphire glass of hardness
grade 9 on Mohs' scale. Your watch is water-resistant 3 bar. To
ensure that this extraordinary watch continues to perform fault-
lessly in the future, it is essential to observe a few important op-
erating instructions.
P O R T O F I N O H A N D - W O U N D E I G H T D A Y S