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Patek Philippe. A very fine and rare 18K gold perpetual calendar chronograph wristwatch with moon phases, 24 hour and leap year indication
What are the reasons that Patek Philippe watches overwhelmingly dominate almost all major watch auctions in the world? - Quora
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Rolex Yacht-Master BLUE - Reviews and Buying Guide for Rolex, Patek, Vacheron, Hublot and More! - YouTube
Are Patek Philippe watches really a good alternative investment and if so which models in the $8k - $12k range are the most desirable? - Quora
![Patek Philippe. An early, extremely rare and highly important, possibly unique and previously unknown staybrite stainless steel chronograph wristwatch with sector dial retailed by Astrua Torino Patek Philippe. An early, extremely rare and highly important, possibly unique and previously unknown staybrite stainless steel chronograph wristwatch with sector dial retailed by Astrua Torino](https://www.christies.com/img/LotImages/2016/GNV/2016_GNV_01413_0172_000(patek_philippe_a_fine_and_early_18k_white_and_yellow_gold_rectangular-121741).jpg?mode=max)