Portugieser Annual Calendar
44.2mm case in 18-carat red gold, silver-plated dial, black alligator leather strap, folding clasp in 18-carat red gold. IWC-manufactured calibre 52850 movement with a power reserve of 7 days (168 hours). Annual calendar with displays for the date, day, month and power reserve. Small hacking seconds at 9 o’clock. Glucydur®* beryllium alloy indexless balance with high-precision adjustment screws on balance rim. Sapphire, convex glass with antireflective coating on both sides, see-through sapphire-glass back. Water resistant 30metres.