Patek Philippe World Time Ref. 5231J-001 The Patek Philippe World Time ref. 5231J-001, introduced in 2019, sets a cloisonné enamel map of the Americas, Europe and Africa at the centre of the world time dial, in a 38.5 mm yellow-gold case. The reference is no longer part of Patek Philippe's collection. - Self-winding Calibre 240 HU - World time across 24 cities, day/night indication - 38.5 mm yellow-gold case - Cloisonné enamel dial centre Full set. Maker: Patek Philippe. Reference: 5231J-001. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request.