This watch is accompanied by a Patek Philippe Extract from the Archives and black leather presentation box.
Patek Philippe confirm production of this watch in 1957 and its subsequent sale on June 5th, 1964.
Production of reference 2526 was launched in 1953. It is thought that only 580 examples were made, the majority of which are in yellow gold. Examples with black enamel dials are extremely rare.
Other examples of this model are illustrated in Patek Philippe Wristwatches by Martin Huber & Alan Banbery, 2nd edition, pp. 213, 216-217.