The production of this model, reference 1463, was launched in 1940. Examples is stainless steel are very rare.
Patek Philippe confirm production of this watch in 1949 and its subsequent sale on August 22nd, 1950.
For an example of reference 1463 in 18K pink gold, see lot 185 in this sale.
Another example of this model is illustrated in Patek Philippe Wristwatches by Martin Huber & Alan Banbery, 2nd edition, p. 267.