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Lot 425 · Important Watches: Part II

Portuguese, Reference 502103 | A pink gold perpetual calendar wristwatch with Northern and Southern hemisphere moon phases, power reserve and year indication | Circa 2004

Iwc

Catalog image of Portuguese, Reference 502103 | A pink gold perpetual calendar wristwatch with N…
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Estimate
CHF 10,000–CHF 15,000 hammer ≈ $11,101–$16,652
Result
Performance
Sale
Sotheby's — Important Watches: Part II, Geneva · 7 November 2023
Record ID
TB-2026-5166478
Record
first seen 28 Jul 2026 · updated 6 Sep 2026 · source ↗
Cite this record
TB-2026-5166478 — https://thebasis.art/cite/TB-2026-5166478

Iwc, Portuguese, Reference 502103 | A pink gold perpetual calendar wristwatch with Northern and Southern hemisphere moon phases, power reserve and year indication | Circa 2004. Sotheby's, 7 Nov 2023, lot 425. bought in (did not sell). TheBasis.Art, TB-2026-5166478.

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Iwc, Portuguese, Reference 502103 | A pink gold perpetual calendar wristwatch with Northern and Southern hemisphere moon phases, power reserve and year indication | Circa 2004. Sotheby's, 7 Nov 2023, lot 425. bought in (did not sell). TheBasis.Art, TB-2026-5166478.

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From the same sale Important Watches: Part II · Nov 2023

LotArtistEstimateResult
Royal Oak, Reference 15300ST.OO.1220ST.03 | A stainless steel wristwa… Audemars Piguet CHF 15,000–CHF 30,000
Daytona, Reference 116518 | A yellow gold chronograph wristwatch | Ci… Rolex CHF 24,000–CHF 35,000
Day-Date, Reference 18238 | A yellow gold and diamond-set wristwatch … Rolex CHF 16,000–CHF 26,000
Royal Oak, Reference 14800ST | A stainless steel wristwatch with date… Audemars Piguet CHF 10,000–CHF 15,000
Day-Date, Reference 18038 | A yellow gold wristwatch with day, date, … Rolex CHF 40,000–CHF 60,000
Steve Aoki, Reference 103539 | A special edition aluminium wristwatch… Bulgari CHF 1,500–CHF 3,000

Comparable results nearest sold works, same medium & price band

ArtistLotvs. estimateResult USD, incl. premiumSale
Iwc Reference IW5444-03 Portugieser Regulateur, A limited editio $15,120 Sotheby's, Mar 2022
Iwc Portuguese Regulator, Reference IW5444-03 | A limited editio Sotheby's, Apr 2022
Iwc Untitled Phillips, Nov 2024
Iwc Pilot Watch Chronograph Edition "Tribute To 3705", Reference Sotheby's, Oct 2023
Iwc Da Vinci, limited edition, reference 3751 Montre bracelet ch Sotheby's, Oct 2024
Iwc iwc | portugieser f.a. jones, ref 5442 limited edition plati Sotheby's, Mar 2020
Iwc iwc | reference 5026 big pilot a limited edition titanium au Sotheby's, Jun 2020
Iwc Big Pilot "Le Petit Prince", Reference IW500916 | A limited Sotheby's, Mar 2026

The closest sold results by price, artist, and medium — the appraiser's comp set, generated from the corpus. All figures converted to USD at current reference rates.

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