Launched in 1984, the elegant Portofino Collection by IWC Schaffhausen welcomes two new variants of the model with an eight-day hand-wound movement. For the Portofino Hand-Wound Eight Days (ref. IW510115), IWC uses suede as the strap material for the first time. With its soft, roughened surface, suede is not only visually attractive; the material is also exceptionally comfortable to wear. The colour of the grey suede harmonises perfectly with the slate-coloured dial. With the Portofino Hand-Wound Eight Days (ref. IW510116), IWC is offering a new combination of materials and colours, with a deep blue dial and an elegant stainless steel Milanaise bracelet.
Both models come in 45 mm stainless steel case, water resistant to 30 m, and topped with a domed crystal sapphire with anti-reflective coating on both sides. They are driven by the 59210 manufacture calibre and boast 192 hours – or eight days – of reliable and accurate running. After this period, the movement stops automatically, although it is designed to run smoothly for nine days. This guarantees a constant driving torque for eight days. The integrated power reserve with separate dial display reminds the owner to wind up their watch at the right time. The indexless balance has a frequency of 28,800 beats per hour and, together with the Breguet spring, which is wound following an age-old tradition of watchmaking, helps to make the watch exceptionally accurate. The see-through sapphire glass back allows the user to view the movement, adorned with Côtes de Genève.
