IWC Portugieser Perpetual Calendar Single Moon
collections / IWC Schaffhausen

IWC Portugieser Perpetual Calendar Single Moon


REFERENCE: IW503301
CASE MATERIAL: 18-carat white gold
BRACELET/STRAP: black alligator leather strap
DIAL COLOUR: ardoise
JEWELS: 54
CALIBRE: 52610
Mechanical movement
Pellaton automatic winding
IWC-manufactured 52610 calibre
7-day power reserve when fully wound
Power reserve display
Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase
Small hacking seconds
Glucydur®* beryllium alloy indexless balance with high-precision adjustment screws on balance rim
Breguet spring
Rotor made of 18-carat red gold
Sapphire glass, arched edge, antireflective coating on both sides
See-through sapphire-glass back
Water-resistant 3 bar
Case height 15.3 mm
Diameter 44.2 mm
Alligator leather strap by Santoni