Patek Philippe's Most Elegant Perpetual Calendar: The 3448 - Revolution Watch
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Reference 4936G, Retailed by Tiffany & Co.: A possibly unique white gold and diamond-set annual calendar wristwatch with moon phases and mother-of-pearl dial, Circa 2017 百達翡麗 白金及鑽石萬年曆腕錶備月相顯示，配珍珠母錶盤，約2017年製，可能為孤品
Press Center Christies Christies Presents Watches Online - New York (8-22 June 2021)
Patek Philippe 'Pink on Pink' $4.5 Million Auction Is Rare Test of Watch Market - Bloomberg