IWC Portugieser Annual Calendar
collections / IWC Schaffhausen

IWC Portugieser Annual Calendar

CASE MATERIAL: stainless steel
BRACELET/STRAP: black alligator leather strap
DIAL COLOUR: midnight blue
CALIBRE: 52850
Mechanical movement
Pellaton automatic winding
IWC-manufactured 52850 calibre
7-day power reserve when fully wound
Power reserve display
Annual calendar with displays for the date, day and month
Small hacking seconds at 9 o’clock
Glucydur®* beryllium alloy indexless balance with high-precision adjustment screws on balance rim
Breguet spring
Rotor with 18-carat gold medallion
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