Valuation · updated October 2026 · live listings + documented auction results
How much is a Omega Seamaster 300 worth?
As of October 2026, the Omega Seamaster 300 CK has 5 documented auction results; the record is $28,750 (Christie's New York, 2015); no live-listing sample currently meets our minimum for a market band.
Auction record
$28,750
Christie's New York · 2015 · 5 documented comps
Most recent documented result: $24,000 (Phillips Geneva, 2019).
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”.