Patek Philippe ref 2523/1 to fetch top bids at Geneva Watch Auction XII
The OAK Collection - Patek Philippe Chapters
Rare Patek Philippe Word Timer Sells at Phillips for $5.5 Million – Robb Report
Auctions: Hands-On With The Ultra-Rare Patek Philippe Ref. 2523 'Eurasia Dial' Hitting The Block At Phillips - Hodinkee
Patek Philippe World Time Ref. 2523J Hong Kong Auction
This vintage double-signed Patek Philippe Worldtimer Ref. 2523 will join the upcoming Christie's sale in Hong Kong - Robb Report Singapore
Patek Philippe World Time: dive into the complete history
Patek Philippe - The Geneva Watch Lot 257 November 2017
Rare Patek Philippe Word Timer Sells at Phillips for $5.5 Million – Robb Report
Rolex is a mere pretender to the Patek Philippe crown at watch auctions
Auctions: Double Signed Patek Philippe Ref. 2523 Sells For HKD 70,175,000 - Hodinkee
Sotheby's Hong Kong Announces Highlights From The Upcoming October Sale With A Rare Vintage Patek Philippe Leading The Pack - Hodinkee
The Rarest And Most Expensive Patek Philippe Watches, Page 2 of 3
The Rarest And Most Valuable Patek Philippe Watches