Valuation · updated July 2026 · live listings + documented auction results
How much is a Greubel Forsey Quadruple Tourbillon Secret worth?
As of July 2026, the Greubel Forsey Quadruple Tourbillon Secret Quadruple Tourbillon has 1 documented auction result; the record is $356,687 (Phillips Hong Kong, 2018); no live-listing sample currently meets our minimum for a market band.
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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”.