Valuation · updated July 2026 · live listings + documented auction results
How much is a Breguet Type XXI worth?
As of July 2026, the Breguet Type XXI 3810ST has 1 documented auction result; the record is $21,450 (Christie's Hong Kong, 2010); no live-listing sample currently meets our minimum for a market band.
Auction record
$21,450
Christie's Hong Kong · 2010 · 1 documented comps
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”.