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Portofino Automatic Moon Phase 37

Automatic winding, Diameter 37.1 mm

Silver plated, 18 ct 5N gold Case

PRODUCT INFORMATION

  • Silver plated dial
  • Taupe calfskin strap with quick-change system Strap width 18.0 mm

DELIVERY & RETURNS INFORMATION

The delivery options available in individual cases depend on the delivery address. We will inform you of the expected delivery time after you have entered your address in the checkout. Free delivery and return

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Portofino Automatic Moon Phase 37

The Portofino Automatic Moon Phase 37 features the IWC-manufactured 32800 caliber and a see-through sapphire glass back displaying the 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
  • Central hacking seconds
  • IWC bracelet quick-change system
  • Sapphire glass, convex, antireflective coating on both sides
  • Moon phase display
  • Case 18 ct 5N gold Case
  • Diameter 37.1 mm
  • Height 11.3 mm
  • Back case See-through sapphire glass back
  • Water resistance 5.0 bar
  • Calibre 32800 Calibre
  • Movement type Automatic winding, IWC-manufactured movement
  • Power Reserve Indicator 120 hours
  • Frequency 28'800 VPH (4 Hz)
  • Components 187
  • Jewels 21
  • 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.