• Movement 
    Automatic
  • Year of manufacture 
    1970
  • Lot number 
    258
  • Diameter 
    44
  • Location

Description

IWC REF. 5023 PORTUGUESE PERPETUAL CALENDAR AUTOMATIC WHITE GOLD
International Watch Co., Schaffhausen, "Portuguese - Perpetual Calendar," made in 2015.
Fine, large, self-winding, water-resistant, 18K white gold wristwatch with secular perpetual calendar, moon
phases, 7-day power-reserve indicator and an 18K white gold IWC deployant clasp. Accompanied by an IWC
presentation case, guarantee and instruction booklets.
Three-body, solid, polished and brushed, concave lugs, stepped concave bezel, screw-down transparent
case back, sapphire crystals.
Anthracite with applied white gold Arabic numerals, outer minute track, subsidiary dials for the seconds,
the day, date, months and the 7-day power-reserve indication, apertures for the moon phases and the
4-digit year. White gold feuille hands.
Cal. C 51613, rhodium-plated, fausses cotes decoration, 62 jewels, straight-line lever escapement,
monometallic balance adjusted to 5 positions, shock absorber, self-compensating Breguet balance spring,
patented Pellaton winding mechanism skeletonized rotor with gold medallion inlay engraved: "IWC -
Probus Scafusia".