![Patek Philippe & Cie, Genève, No 722708, case No 306210, Ref. 2523 HU (Heures Universelles). Made in 1953, sold on January 24, 1956. Extremely fine and extremely rare, "World Time", 18K yellow Patek Philippe & Cie, Genève, No 722708, case No 306210, Ref. 2523 HU (Heures Universelles). Made in 1953, sold on January 24, 1956. Extremely fine and extremely rare, "World Time", 18K yellow](https://antiquorum-swiss-assets.s3.us-west-2.amazonaws.com/images/114/lots/529/529.jpg)
Patek Philippe & Cie, Genève, No 722708, case No 306210, Ref. 2523 HU (Heures Universelles). Made in 1953, sold on January 24, 1956. Extremely fine and extremely rare, "World Time", 18K yellow
![Auctions: Hands-On With The Ultra-Rare Patek Philippe Ref. 2523 'Eurasia Dial' Hitting The Block At Phillips - Hodinkee Auctions: Hands-On With The Ultra-Rare Patek Philippe Ref. 2523 'Eurasia Dial' Hitting The Block At Phillips - Hodinkee](https://hodinkee.imgix.net/uploads/images/1104ceca-a6b2-4a74-9b7e-cb8ccf210f54/L1030169-Edit.jpg?ixlib=rails-1.1.0&fm=jpg&q=55&auto=format&usm=12&fit=crop&ch=Width%2CDPR%2CSave-Data&alt=)
Auctions: Hands-On With The Ultra-Rare Patek Philippe Ref. 2523 'Eurasia Dial' Hitting The Block At Phillips - Hodinkee
![One of Only Three in Existence - Patek Philippe Ref. 2523 “Eurasia Dial” Poised to Bring US$3.8m at Geneva Auction | Auctions News | THE VALUE | Art News One of Only Three in Existence - Patek Philippe Ref. 2523 “Eurasia Dial” Poised to Bring US$3.8m at Geneva Auction | Auctions News | THE VALUE | Art News](https://assets.thevalue.com/970ceb05b241954e88a2a999cd578206db9023cc/mobile/8dc111f62fb37d2f4719c0e0e2443eab88d68b5b.jpg?1619512695)
One of Only Three in Existence - Patek Philippe Ref. 2523 “Eurasia Dial” Poised to Bring US$3.8m at Geneva Auction | Auctions News | THE VALUE | Art News
![A one-of-three Patek Philippe Ref. 2523 'North America Dial' could fetch US$7.1m in Hong Kong | Feature Series | THE VALUE | Art News A one-of-three Patek Philippe Ref. 2523 'North America Dial' could fetch US$7.1m in Hong Kong | Feature Series | THE VALUE | Art News](https://assets.thevalue.com/869e21218b198661f8cfef91b5e441d6885f34bc/mobile/d28b3e07e0488c6e427ca09dfe25f1ba3467724e.jpg?1684506116)
A one-of-three Patek Philippe Ref. 2523 'North America Dial' could fetch US$7.1m in Hong Kong | Feature Series | THE VALUE | Art News
![Auctions: Hands-On With The Ultra-Rare Patek Philippe Ref. 2523 'Eurasia Dial' Hitting The Block At Phillips - Hodinkee Auctions: Hands-On With The Ultra-Rare Patek Philippe Ref. 2523 'Eurasia Dial' Hitting The Block At Phillips - Hodinkee](https://hodinkee-production.s3.amazonaws.com/uploads/images/d68570b0-669a-4980-8fa6-7db398edb212/L1030169-2.jpg)