Patek Philippe. A fine 18K gold wristwatch with sweep centre seconds

With Patek Philippe Extract from the Archives confirming production of the present watch in 1955 and its subsequent sale on 12 March 1956.
The present example of reference 2508 is distinguished by its remarkable case condition, fully retaining its proportions and sharp edges, and its superb dial: virtually flawless and incredibly aged with a light and even ivory patina.

Reference 2508 (and its reference sister 2509, identical but with subsidiary seconds) was launched in 1950, and remained in production until the late 1960s. It is the waterproof version of the large calatrava model (such as reference 570), and its case design and construction presents many similarities with the reference 1463 masculine case design, such as the case back construction, the presence of the dust cap, the bezel style and the lugs design.

Reference 2508 is known in two series. The first series, exemplified by the present watch, presents square and dagger numerals, the second series presents either luminous baton numerals and outer scale, or non luminous numerals and outer beady divisions.

The model is illustrated in Patek Philippe by Martin Huber & Alan Banbery, 2nd edition, p. 204, pl. 328, and in Patek Philippe Museum - Patek Philippe Watches Volume II, p. 730, p. 732.