With Patek Philippe Extract from the Archives confirming production of the present watch with raised steel indexes in 1948 and its subsequent sale on 9 August 1950.
The reference 687 offered here for sale is distinguished by its near mint original overall condition, including the rare stainless steel case which retains the attractive satin-finish. To the best of our knowledge it has never before been offered in public and it is the only example of this reference known with this dial layout.
Launched in the late 1930s, reference 687 was made in an extremely small series only, comprising less than 15 examples each in yellow gold and in steel.
Other examples of openface chronograph watches with vertical registers are illustrated in Patek Philippe Pocketwatches by Martin Huber & Alan Banbery, p. 188.