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IWC Portuguese Tourbillon Mystère

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

circa 2010

This IWC Portuguese Tourbillon Mystère is an 18K pink gold self-winding wristwatch, part of a limited edition of 500 pieces. It features a large 44 mm case with concave lugs, a brushed and polished finish, and sapphire crystals on both the front and the transparent case back.

The matte silver dial includes applied pink gold Arabic numerals, pink gold feuille hands, and a visible one-minute flying tourbillon regulator at the 12 o'clock position. The movement is the IWC Caliber C 50900, which includes a 7-day power reserve indication, 44 jewels, and the patented Pellaton winding system. The watch is accompanied by an 18K pink gold deployant clasp, fitted box, and documentation.

Evidence at a glance

Linked sources
1
Photograph views
1
Catalogue references
0

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Technical characteristics

Type
Tourbillon wristwatch
Maker
International Watch Co., Schaffhausen
Movement
Caliber C 50900
Case Back
Transparent, secured by 6 screws
Case Diameter
44 mm
Case Material
18K pink gold
Power Reserve
7 days
Place recorded
Switzerland
Winding System
Pellaton
Limited Edition
500 pieces
Maker / attribution
International Watch Co.

Design

Visible features
• Applied pink gold Arabic numerals • Visible flying tourbillon aperture at 12 o'clock • Large 44 mm case diameter • 18K pink gold case and deployant clasp
Case and Dial Design
The watch is housed in a substantial 44 mm 18K pink gold case, featuring a three-body construction with polished and brushed surfaces. The design includes concave lugs and a transparent case back secured by six screws, protected by sapphire crystals. The case band is engraved with the limited edition number. The matte silver dial displays applied pink gold Arabic numerals and matching feuille hands. A prominent feature is the aperture at the 12 o'clock position, which provides a view of the flying one-minute tourbillon regulator. Subsidiary indicators include a dial for the seconds and a sector for the 7-day power reserve.
Movement and Mechanics
The Portuguese Tourbillon Mystère is powered by the IWC Caliber C 50900, a self-winding mechanical movement. It features rhodium plating with fausses cotes decoration and is built with 44 jewels. The assembly includes a three-arm tourbillon cage and a straight-line lever escapement. Technical features of the movement include a monometallic balance adjusted to five positions, a shock absorber, and a self-compensating blued steel Breguet balance spring. The movement incorporates the proprietary Pellaton winding system and features a rotor with an inset 18K gold signature medallion.
Condition and Accompaniments
The auction description reports the watch to be in excellent, as-new condition for the case, dial, and movement, assigning it a grade of AAA. The sale includes an 18K pink gold IWC deployant clasp, which secures the watch. The timepiece is sold as a set, which includes the original fitted presentation box, an instruction booklet, and documentation.

Identification

Reference
504402
Serial number
5259513
Source note
Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.

Research required

  • Research required: The source provides conflicting information regarding the edition number, listing 372/500 in the main header but 351/500 in the description body.
  • Research required: The included certificate and guarantee card are described as blank.
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