Valuation · updated October 2026 · live listings + documented auction results
How much is a Omega Speedmaster Prototype worth?
As of October 2026, the Omega Speedmaster Prototype ST has 2 documented auction results; the record is $194,304 (Phillips Geneva, 2018); no live-listing sample currently meets our minimum for a market band.
Most recent documented result: $32,000 (Phillips Hong Kong, 2019).
Full Speedmaster Prototype dossier Set a price alert All valuations
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”.