Published on August 14th, 2017 | by Daniel Sherman Fernandez



The Porto no watches from IWC Schaffhausen have been bringing the laid-back Italian lifestyle to wrists for over 30 years. Now, this timelessly elegant watch family is gaining two new members. The tourbillon, one of the most sophisticated haute horlogerie complications, is joining the collection for the  first time. And as another  first, the Schaffhausen-based watch manufacturer is also launching the classic Porto no Hand-Wound Eight Days with a moon phase display.

With the introduction of the Porto no family in 1984, IWC Schaffhausen continued the long-standing tradition of the classic gold watch line. The crowning jewel of the series was the Porto no Hand-Wound with Moon Phase (Ref. 5251). Designed on the basis of the Lépine pocket watch, this timelessly elegant watch with an impressive case diameter of 46 millimetres quickly went on to gain iconic status. Since that time, the representatives of this watch family have been up there with the most popular time- pieces from Schaffhausen thanks to their combination of modesty and complexity. The collection is now being extended with the addition of two new models:

The Portofino Hand-Wound Tourbillon Rétrograde (Ref. IW516501) is the  rst Porto no to feature a tourbillon, with the balance, pallet and escape wheel mounted in a cage that rotates around its own axis once every minute. This constant rotation helps to counteract the pull of gravity so that it does not adversely affect the watch’s rate and accuracy. The newly developed hacking tourbillon enables the watch to be set with down-to-the-second

accuracy. IWC has also revised the geometry of the pallet and the escape wheel, plus it has manufactured the components using diamond-coated silicon, thus reducing friction. This contributes substantially to the power reserve of eight days achieved with the IWC hand-wound 59900 calibre. A retrograde date display and power re-serve display accompany the ying minute tourbillon on the dial. The case, with a diameter of 45 millimetres, is made of 18-carat red gold. The dial is silver-plated and the hands are gold-plated; the appliqués are made of solid gold. The sapphire-glass back provides a view of the calibre, which is adorned with Geneva stripes.

IWC has integrated a moon phase display into a Porto no Hand-Wound Eight Days watch for the  rst time with the Porto no Hand-Wound Moon Phase (Ref. 5164). The watch is also a tribute to the Reference 5251 from 1984, another timepiece that was equipped with this complica- tion. When developing the IWC-manufactured 59800 cali- bre, the IWC watch designers enhanced the basic 59000 calibre with a moon phase module that only needs to be adjusted by one day after 122 years. The watch with a case diameter of 45 millimetres is available in two ver- sions – both of which have gold-plated hands. The  rst version has an 18-carat red gold case, a slate-coloured dial and solid gold appliqués (Ref. IW516403), while the second has a stainless-steel case, a silver-plated dial and gold-plated appliqués (Ref. IW516401). Both models are  tted with a dark brown alligator leather strap by Santoni.



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