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In-Depth: Patek Philippe Ref. 1518 in Stainless Steel | SJX Watches
The Patek Philippe Ref. 1518 in stainless steel is set to be a highlight at Phillips’ upcoming auction, boasting extreme rarity with only four known examples. As the first serially-produced perpetual calendar-chronograph wristwatch, it combines historical significance with a compact and understated design, measuring just 35 mm in