IWC Portofino Hand-Wound Big Date Reference 5161 Watch Operating Instructions

Your IWC watch shows you the time in hours, minutes and seconds, together with the date and the power reserve. The mechanical movement has a power reserve of approximately 8 days (192 hours) when fully wound. Your Portofino Hand­ Wound Big Date 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 faultlessly in the future, it is essential to observe a few important operating instructions.

IWC Portofino Hand-Wound Big Date Reference 5161 Watch Operating Instructions ScreenshotFilename: IWA60265_REF5161_eu.pdf
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In IWC Portofino Hand-Wound Big Date Watch Manual

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