Portal:Anniversaries/November 20

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2003 — Patek Philippe wins the Grand Prix d'Horlogerie de Genève Aiguille d'Or for the 5101 P "10 Jours Tourbillon".
2015 — The Prix Gaïa awards are given to Anita Porchet, Giulio Papi, and Jonathan Betts
2017 — Vacheron Constantin introduces the Overseas dual time prior to SIHH.
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