Valuation · updated July 2026 · live listings + documented auction results
How much is a Omega Speedmaster Prototype worth?
As of July 2026, a Omega Speedmaster Prototype ST lists at a median $9,500 (range $3,200–$637,995 across 778 live listings from 6 merchants); the documented auction record is $194,304 (Phillips Geneva, 2018).
Most recent documented result: $32,000 (Phillips Hong Kong, 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”.