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The Encyclopedia of Horology

Wristwatch · Tourbillon wristwatch

IWC Portugieser Tourbillon Mystère Limited Edition Wristwatch

Partially verified

This IWC Portugieser Tourbillon Mystère is a limited-edition automatic wristwatch dating to 2008. Catalogued as number 165 from an edition of 250 pieces, it features a hallmarked 18k white gold case measuring 44 mm in diameter with a visible exhibition case back. The watch is powered by automatic caliber 50900 containing 44 jewels, offering a tourbillon, small seconds counter, and a 7-day power reserve indicator. It is fitted with a replaced brown leather strap fastened by an original hallmarked 18k white gold folding clasp, and is accompanied by its original box, instruction manual, and warranty booklet containing the warranty card.

IWC Portugieser Tourbillon Mystère wristwatch, ref. IW504207, 2008.
IWC Portugieser Tourbillon Mystère wristwatch, ref. IW504207, 2008. — Wettmann Kunstauktionen / Invaluable. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.invaluable.com
Category
Wristwatch · Tourbillon wristwatch
Maker / attribution
IWC
Reference
IW504207
Catalogue / lot identifier
146
Source-reported date
2008
Country
Switzerland
Source-reported serial
3208400

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Identity and Limitation

This IWC Portugieser Tourbillon Mystère is identified as a limited-edition automatic wristwatch produced as part of an edition of 250 pieces. The object is recorded as number 165 in this series, associated with reference number IW504207 and case number 3208400.

The watch is noted to date to 2008. It was offered at auction in December 2023, accompanied by an original box, warranty booklet, warranty card, and instruction manual.

Evidence for this section
  • “Jahr 2008”
  • “limitation 165/250”
  • “Ref.-Nr. IW504207”
  • “Gehäuse-Nr. 3208400”
  • “mit Original-Box und -Papieren, Box sehr gut, Garantieheft mit Garantiekarte, Bedienungsanleitung”

Case and Construction

The watch is constructed with a 750 white gold case measuring 44 mm in diameter, which is noted as hallmarked. It features a visible case back, and the total weight of the object is stated as approximately 152.1 grams.

The timepiece is fitted with a replaced leather strap and an original 750 white gold folding clasp, which is also hallmarked.

Evidence for this section
  • “Gehäuse 750 Weißgold, punziert, Durchmesser 44 mm”
  • “Sichtboden”
  • “Gesamtgewicht ca. 152,1 g”
  • “Armband ergänzt, Leder, Original-Faltschließe, 750 Weißgold, punziert”

Dial and Mechanism

The mechanism is identified as caliber 50900, containing 44 rubies. The watch includes a tourbillon, a 7-day power reserve indicator, and a small seconds counter.

The condition and functionality of the watch were tested by the auction house's master watchmaker.

Evidence for this section
  • “Cal. 50900”
  • “44 Rubine”
  • “Automatik, Tourbillon, 7-Tage-Gangreserveanzeige, kleine Sekunde”
  • “Zustand und Funktionalität durch unseren Uhrmachermeister geprüft”

Open research questions

  • What are the official IWC factory specifications for the strap material originally paired with reference IW504207?
  • Does the provided case number align with the production period of 2008 according to official IWC archives?

Source evidence

Recorded claims and source quotations for IWC Portugieser Tourbillon Mystère Limited Edition Wristwatch
FieldSource-reported valueSource quotation
Reference NumberIW504207“Ref.-Nr. IW504207”
Case Number3208400“Gehäuse-Nr. 3208400”
Caliber50900“Cal. 50900”
Limitation165/250“limitation 165/250”
Case Material750 white gold“case 750 white gold, hallmarked”
Diameter44 mm“Durchmesser 44 mm”
StrapReplaced leather“strap replaced, leather”
Weight152.1 g“Gesamtgewicht ca. 152,1 g”

Visible details

  • Dark grey sunburst dial with applied Arabic numerals and leaf hands.
  • Flying tourbillon displayed at 12 o'clock within a fluted fan-shaped aperture surround.
  • Subsidiary seconds dial positioned at 9 o'clock and a 7-day power reserve scale between 4 and 6 o'clock.
  • Brown leather strap with contrast off-white stitching.

Research qualifications

  • The leather strap is replaced and not original to the watch.
  • The 18k white gold folding clasp is original, but the total length of the strap and clasp is stated as approximately 17 cm.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

Sold at Auction: IWC Portugieser Tourbillon Mystere - Limitierte Edition

Reviewed 2026-10-26 · Record 6e46edd442

Terms in this record

Glossary explanations for terms named in this object’s record.

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