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Lot 8916 · Fine Watches

Seamaster 600 "PloProf", Reference ST 166.0077 | A stainless steel wristwatch with date and bracelet, Circa 1975

Omega · stainless steel

Catalog image of Seamaster 600 "PloProf", Reference ST 166.0077 | A stainless steel wristwatch w…
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Estimate
HK$65,000–HK$100,000 hammer ≈ $8,286–$12,748
Result
upcoming — 22 September 2026
Performance
Sale
Sotheby's — Fine Watches, Hong Kong · 22 September 2026
Record ID
TB-2026-17805673
Record
first seen 12 Sep 2026 · updated 12 Sep 2026 · source ↗
Cite this record
TB-2026-17805673 — https://thebasis.art/cite/TB-2026-17805673

Omega, Seamaster 600 "PloProf", Reference ST 166.0077 | A stainless steel wristwatch with date and bracelet, Circa 1975. Sotheby's, 22 Sep 2026, lot 8916. estimate HK$65,000–HK$100,000, unsold at time of record. TheBasis.Art, TB-2026-17805673.

Sell probability TheBasis model · trained on recorded passes

93% chance this lot finds a buyer · market base rate 72%

Of the 92,006 held-out lots the model scored about 91%, 91% sold.

Modeled from the house, the sale type, the artist's record and the estimate's position — not a view on the work. Subscribers see each factor and its sample. See plans. Model data through 2025-09-15.

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Omega, Seamaster 600 "PloProf", Reference ST 166.0077 | A stainless steel wristwatch with date and bracelet, Circa 1975. Sotheby's, 22 Sep 2026, lot 8916. estimate HK$65,000–HK$100,000, unsold at time of record. TheBasis.Art, TB-2026-17805673.

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From the same sale Fine Watches · Sep 2026

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Reference UR-201 | A white gold and titanium wristwatch with revolvin… Urwerk HK$200,000–HK$400,000 upcoming
Pendulette De Voyage Trinity, Reference 2859 | A three colour gold-pl… Cartier HK$42,000–HK$60,000 upcoming
WW.TC World Time Chronograph, Reference 4980 | A pink gold world time… Girard Perregaux HK$70,000–HK$90,000 upcoming
Spirit Flyback, Reference L3.821.1.53.6 | A titanium flyback chronogr… Longines HK$42,000–HK$60,000 upcoming

Comparable results nearest sold works, same medium & price band

ArtistLotvs. estimateResult USD, incl. premiumSale
Omega Untitled $10,532 Phillips, Mar 2026
Omega An 18k rose gold and diamond automatic Omega De Ville Co-Axi Lempertz, May 2025
Omega Omega Speedmaster 145012, anni ‘60 Finarte, Nov 2020
Omega 'Constellation' gold wristwatch Rago, Dec 2025
Omega Omega: Seamaster VAN HAM Kunstauktionen GmbH Co. KG, Nov 2023
Omega Diamond watch, 1960s, attributed to Gilbert Albert for Omega Sotheby's, Feb 2023
Omega omega | reference 12986, a platinum and diamond-set open fac Sotheby's, Oct 2020
Omega a stainless steel chronograph wristwatch with registers ref Sotheby's, Dec 2017

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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