Valuation · updated July 2026 · live listings + documented auction results
How much is a Omega Seamaster 300 worth?
As of July 2026, a Omega Seamaster 300 165 lists at a median $29,900 (range $7,250–$39,500 across 3 live listings from 2 merchants); the documented auction record is $102,060 (Phillips New York, 2021).
Live market median
$29,900
$7,250–$39,500 · 3 listings · 2 merchants
Auction record
$102,060
Phillips New York · 2021 · 1 documented comps
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How this valuation works
The live band is computed from in-stock listings matched to this reference across our tracked merchants (asking prices, not offers). The auction band is from documented, primary-sourced results in the Record Ledger corpus. The trend is the brand cohort's movement on the repeat-listing Price Index. Cite as “MostExpensiveWatches Valuation”.