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 The holiday season is here! Place your order by December 18th to receive it in time to gift it for the holidays. Complimentary exchange and returns extended until January 31st, in their original packaging and conditions.

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Portofino Hand-Wound Moon Phase

Manual-winding, Diameter 45.0 mm

Silver, Stainless steel Case

PRODUCT INFORMATION

  • Silver dial
  • Dark brown alligator leather strap by Santoni Strap width 22.0 mm

DELIVERY & RETURNS INFORMATION

Limited Availability – contact us to learn about purchase options

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Monday to Friday: 8:00am – 6:00pm

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Portofino Hand-Wound Moon Phase

For many, it's a dream come true: for the first time ever, IWC has integrated the popular moon phase display in the classic Portofino with its eight-day, hand-wound movement.

Moon phase display | IWC Schaffhausen

The difficulty in displaying the moon phase on the dial of a watch comes from the fact that the moon does not follow a daily rhythm in its orbit around the Earth. A cycle from new moon to new moon – one lunation – does not last 30 days, but exactly 29 days, 12 hours, 44 minutes, and 2.88 seconds. Therefore, a period of 30 days must be slowed down to come as close as possible to one lunar cycle. This is achieved by placing a reduction gear between the day star and the moon phase disc. The key to high precision lies in the number of wheels used, their proportions and the number of teeth they have. IWC’s moon phase displays are calculated to the highest precision and accuracy.

'Case'
  • Features
  • Case
  • Movement
  • Packaging
  • Small hacking seconds
  • Sapphire glass, arched-edge, antireflective coating on both sides
  • Date display
  • Power reserve display
  • Moon phase display
  • 8 days power reserve
  • Case Stainless steel Case
  • Diameter 45.0 mm
  • Height 13.1 mm
  • Back case See-through sapphire glass back
  • Water resistance 3.0 bar
  • Calibre 59800 Calibre
  • Movement type Automatic winding IWC-manufactured movement
  • Movement type Manual-winding
  • Power Reserve Indicator 192 hours
  • Frequency 28'800 VPH (4 Hz)
  • Components 232
  • Jewels 30
  • Finishing Côtes de Genève

Contact Concierge

Do you have a question about a product, your order or our service? Contact us via phone, email, or through our Whatsapp service.