IWC Schaffhausen 4590 Mode D'emploi page 15

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THE TECHNICAL REFINEMENTS OF THE
PORTOFINO AUTOMATIC MOON PHASE 37/
PORTOFINO AUTOMATIC MOON PHASE 40
Your IWC watch shows you the time in hours, minutes and seconds. 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
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a power reserve of approximately 42 hours when fully wound. Your Portofino Automatic Moon
Phase 37/Portofino Automatic Moon Phase 40 is protected by a 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 Schaffhausen is not the owner of the Nivaflex and Nivarox trademarks.
® ®
PORTOFINO AUTOMATIC MOON PHASE 37/PORTOFINO AUTOMATIC MOON PHASE 40