IWC Schaffhausen - Portofino

Portofino Hand-Wound Eight Days

45.0 mm. Made in Schaffhausen, Switzerland. Model IW510103
Editor's notes

In the Portofino Hand-Wound Eight Days, the IWC-manufactured 59210-calibre movement will run precisely and reliably for a full 192 hours, or 8 days, before it automatically stops. Strictly speaking, it is 9 days, but the extra day in reserve ensures that the movement maintains as constant a driving torque as possible and continues to run precisely. The owner will always be on the safe side if he winds his watch once a week. The power remaining can be read off on the power reserve display on the dial. Together with the small seconds display and date display, this gives the dial a pleasing equilibrium. The indexless balance has a frequency of 28,800 beats per hour and, together with the Breguet spring bent into shape in accordance with age-old watchmaking tradition, helps to make the watch exceptionally accurate. The watch is available with a stainless-steel case, silver-plated dial and solid gold indices. It has a transparent sapphire-glass back and a brown alligator leather strap from the House of Santoni.


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Technical Specifications


59210 Calibre

IWC-manufactured movement


192 hours Power Reserve

215 Components

30 Jewels

Côtes de Genève, perlage, polished


Dark brown alligator leather strap by Santoni

Strap width 22 mm


Silver-plated dial


Date display

Sapphire glass, arched-edge, antireflective coating on both sides

Small hacking seconds

8 days power reserve

Power reserve display

Indexless balance with four golden weight screws on the balance rim


Diameter 45.0 mm

Height 11.7 mm

Water resistance 3 bar

IWC Portofino HandWoundEightDays IW510103 TechnicalSpecifications FINAL
IWC Portofino HandWoundEightDays IW510103 TechnicalSpecifications FINAL

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