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Cartier Paris 'Model A' Mystery Clock sells for HK$6,354,000 at Bonhams Hong Kong watch auction

market-auction · 2026-04-20

On November 25, Bonhams Hong Kong hosted an auction titled Echoes of Time: Rare Timepieces from the Pages of History, featuring notable watches from elite brands. A standout piece was a Cartier Paris 'Model A' Mystery Clock from about 1914, which sold for HK$6,354,000, significantly surpassing its minimum estimate. This sale represented the third-highest price for this model, following Bonhams Hong Kong's own record of HK$6,870,000 achieved in 2022. This clock has a rich history tied to the Delion family, renowned hatmakers in Paris. Moreover, a Patek Philippe Grand Complications Ref. 5016P-01 sold for HK$6,989,000, also exceeding its highest estimate, featuring a stunning transparent rock-crystal case and diamond-set hands.

Key facts

  • Bonhams Hong Kong held the Echoes of Time: Rare Timepieces from the Pages of History auction on November 25
  • A Cartier Paris 'Model A' Mystery Clock circa 1914 sold for HK$6,354,000
  • The sale price was more than three times the clock's low estimate of HK$2,000,000-4,000,000
  • This represents the third-highest auction price ever for a 'Model A' Mystery Clock
  • Bonhams Hong Kong set the auction record for this model in 2022 at HK$6,870,000
  • The clock features a transparent rock-crystal case on white agate base with floating diamond-set hands
  • The clock's provenance traces to the Delion family, renowned Parisian hatmakers
  • A Patek Philippe Grand Complications Ref. 5016P-01 sold for HK$6,989,000, exceeding its high estimate

Entities

Institutions

  • Bonhams
  • Cartier Paris
  • Patek Philippe

Locations

  • Hong Kong
  • Paris
  • Malaysia

Sources