Reference IW503501 Portugieser | A stainless steel automatic annual calendar wristwatch with 7 day power reserve indication, Circa 2016 — IWC

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Estimate: $6,000–$8,000 hammer
Result
Performance
Sale: Sotheby's — Fine Watches, New York · 15 June 2023
Record ID: TB-2026-5133234
Record: first seen 28 Jul 2026 · updated 6 Sep 2026 · source ↗
Cite this record: TB-2026-5133234 — https://thebasis.art/cite/TB-2026-5133234

Iwc, Reference IW503501 Portugieser | A stainless steel automatic annual calendar wristwatch with 7 day power reserve indication, Circa 2016. Sotheby's, 15 Jun 2023, lot 392. result recorded. TheBasis.Art, TB-2026-5133234.

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Iwc, Reference IW503501 Portugieser | A stainless steel automatic annual calendar wristwatch with 7 day power reserve indication, Circa 2016. Sotheby's, 15 Jun 2023, lot 392. result recorded. TheBasis.Art, TB-2026-5133234.

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From the same sale Fine Watches · Jun 2023

Lot	Artist	Estimate
Reference 47240/000J-5 Malte 240 Jubilee \| A yellow gold automatic wr…	Vacheron Constantin	$4,000–$6,000
Reference 5512 Submariner \| A stainless steel wristwatch with bracele…	Rolex	$8,000–$12,000
Reference 3468/3538 Calatrava \| Retailed by Gubelin: A yellow gold wr…	Patek Philippe	$6,000–$9,000
Reference 7391 0 Historique \| A yellow gold and diamond-set cushion s…	Vacheron Constantin	$4,000–$6,000
Reference 92510A31 \| A yellow gold and diamond-set cushion shaped bra…	Piaget	$3,000–$5,000
Reference 666-88 Sonata \| A pink gold dual time wristwatch with alarm…	Ulysse Nardin	$10,000–$15,000

Comparable results nearest sold works, same medium & price band

Artist	Lot	Result USD, incl. premium	Sale
Iwc	Untitled	$8,166	Phillips, Sep 2025
Iwc	'Khanjar' Compass \| A PVD-coated aluminum wristwatch with da		Sotheby's, May 2024
Iwc	A white gold, diamond and onyx-set bracelet watch with onyx		Sotheby's, Oct 2022
Iwc	Ingenieur, Reference IW322702 \| A titanium wristwatch with d		Sotheby's, Oct 2024
Iwc	Reference 3241 Mark XII \| A platinum limited edition automat		Sotheby's, Sep 2022
Iwc	Reference 3799 Doppelchronograph \| A ceramic and titanium au		Sotheby's, Jun 2023
Iwc	a limited edition pink gold wristwatch ref 5442 no 925/1000		Sotheby's, May 2018
Iwc	Portugieser Regulateur, limited edition, reference 5444 Mont		Sotheby's, Oct 2024

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.