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 CK lists at a median $7,695 (range $3,900–$83,595 across 117 live listings from 4 merchants); the documented auction record is $28,750 (Christie's New York, 2015).
Most recent documented result: $24,000 (Phillips Geneva, 2019).
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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”.