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Brand IWC

IWC Portugieser Perpetual Calendar 44, 44 mm

IWC Portugieser Perpetual Calendar 44 (new condition) has a 44 mm case and a blue dial.

Store code

luxwatch-102337

69 396.24 €

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1

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Case

Diameter
44 mm
Water resistance
50 m

Movement

Movement type
Manual winding

Dial

Dial colour
Blue

Set and condition

Brand
IWC
Reference
IW503703
Condition
New

The story of this watch · Chapters: 6

IWC Portugieser Perpetual Calendar 44, 44 mm

I · This watch

IWC Portugieser Perpetual Calendar 44 (new condition) has a 44 mm case and a blue dial. It uses a hand-wound movement. The display includes perpetual calendar; water resistance is 50 m.

IWC Portugieser Perpetual Calendar 44, 44 mm
case diameter
44 mm
water resistance
50 m
movement
Manual winding

II · The line

Portugieser Perpetual

The Portugieser began in 1939 after Portuguese importers requested large wristwatches with the precision of pocket-watch movements. That origin explains the family’s lasting association with expansive, clearly organized dials.

III

The perpetual calendar

A perpetual calendar knows how long each month is and when February has 29 days, so the date needs no correction for decades. The first manual adjustment falls in 2100, a year that is not a leap year in the Gregorian calendar. If the watch stops, it is set forward with the correctors rather than by turning the date day by day.

IV · The manufacture

IWC since 1868

American watchmaker Florentine Ariosto Jones founded IWC in Schaffhausen in 1868. The Special Pilot’s Watch of 1936 established a lasting aviation line. In 1955, the Ingenieur combined Pellaton automatic winding with protection against magnetic fields. The Aquatimer of 1967 moved the instrument-watch idea underwater. Kurt Klaus’s crown-adjusted perpetual calendar appeared in the Da Vinci in 1985. IWC joined Richemont in 2000 and remains one of the group’s watchmaking houses. A new Schaffhausen site opened in 2018 for cases, components and movement assembly. The Portugieser Eternal Calendar won the GPHG Aiguille d’Or in 2024.

  1. 1868American watchmaker Florentine Ariosto Jones founded IWC in Schaffhausen in 1868.
  2. 1936The Special Pilot’s Watch of 1936 established a lasting aviation line.
  3. 1955In 1955, the Ingenieur combined Pellaton automatic winding with protection against magnetic fields.
  4. 1967The Aquatimer of 1967 moved the instrument-watch idea underwater.
  5. 1985Kurt Klaus’s crown-adjusted perpetual calendar appeared in the Da Vinci in 1985.
  6. 2000IWC joined Richemont in 2000 and remains one of the group’s watchmaking houses.
All IWC watches in the catalogue →

V · Ownership

Wearing and caring

  1. 1

    A hand-wound watch is wound with the crown, ideally at the same time every day, until you feel resistance. Never force it past that point.

  2. 2

    Water resistance up to 50 m means splashes and rain. Do not swim or shower with it.

  3. 3

    Have the movement serviced every few years by the brand's own service or an authorised watchmaker.

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