Portofino Hand-Wound Moon Phase 45mm 18-Karat Red Gold and Alligator Watch, Ref. No. IW516403

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Editor's Notes

IWC SCHAFFHAUSEN's 'Portofino' watch is powered by a 59800-calibre movement that can be seen through the exhibition sapphire glass back and has an eight-day reserve, so you'll only need to wind it once a week. The eye-catching moon phase dial not only helps you keep track of where you are in the month, but is so accurate it will only need to be adjusted by one day after 577 years. This classic 45mm case is made from 18-karat red gold and anchored in place by a deep-brown Santoni alligator strap.

We offer an eight-year warranty for all working parts and manufacturing faults for IWC SCHAFFHAUSEN watches. For more information, contact one of our experts by emailing

Technical Specification


  • Swiss-made calibre 59800 hand-wound movement with 192-hour power reserve
  • 30 jewels, 28,800 Vph


  • Hour and minute hands, seconds subdial
  • Date window
  • Moon-phase display


  • Slate-grey dial
  • Stainless steel dauphine hands, indices and markers


  • 18-karat red gold case
  • Crown for time and date adjustments and manual winding
  • Sapphire glass crystal
  • Exhibition case back
  • Pin buckle-fastening dark-brown alligator strap


  • Case diameter: 45mm; case thickness: 13.2mm; lug width: 22mm
  • Water resistance: 3 bar
  • Comes in a presentation box
  • Alligator: USA
  • This piece has been certified in accordance with the Hallmarking Act 1973
  • Reference number: IW516403
  • Made in Switzerland
Product Code 16301891330333038

Returns or Exchanges

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