IWC Portofino Automatic Reference 3565 Watch Operating Instructions

Your IWC watch shows you the time in hours, minutes and sec-onds, together with the date. The mechanical movement, which is timed in five positions, with automatic winding, a temperature-compensating balance spring made of Nivarox of the highest quality and an unbreakable Nivaflex mainspring, has a power reserve of approximately 42 hours when fully wound. Your Portofino Automatic is protected by a sapphire glass of hardness grade 9 on Mohs’ scale. Your watch is water-resistant 3 bar. The rotor of the automatic winding system is mounted by means of a ball bearing with ceramic balls. To ensure that this extraordinary watch con-tinues to perform faultlessly in the future, it is essential to observe a few important operating instructions.

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In IWC Portofino Automatic Watch Manual

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