IWC PORTOFINO HAND-WOUND EIGHT DAYS REF. IW510104 18 ct red gold case - 59210 Calibre (PR: 192h)

THE PORTOFINO HAND-WOUND EIGHT DAYS STORY

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 an 18-carat red gold case, slate-coloured dial and solid gold indices. It has a transparent sapphire-glass back and a dark brown alligator leather strap from the House of Santoni.

IW510104 SPECIFICATIONS

CASE

18 ct red gold case
Diameter 45.0 mm
Height 11.7 mm
See-through sapphire glass back
Water resistance 3 bar

MOVEMENT

59210 Calibre
Manual-winding
Frequency 28800.0 vph (4.0 hz)
30 Jewels
192 hours Power Reserve
IWC-manufactured movement
Côtes de Genève, perlage, polished

FEATURES

8 days power reserve
Power reserve display
Date display
Sapphire glass, arched-edge, antireflective coating on both sides
Small hacking seconds
Indexless balance with four golden weight screws on the balance rim

DIAL

Slate-coloured dial

STRAP

Dark brown alligator leather strap by Santoni