With Patek Philippe Extract from the Archives confirming production of the present watch in 1961 and its subsequent sale on 18 September 1961.
The large Calatrava model reference 570 was introduced to the market in 1938, featuring either subsidiary or sweep centre seconds, the latter with caliber 12 SC or 27 SC. It was made in stainless steel, stainless steel and gold, yellow, pink gold, white gold and platinum.
The present watch, fitted with caliber 27 SC, is particularly rare as cased platinum. To date, only 5 examples of this centre seconds version in platinum have been offered at auction. Fresh to the market and consigned by an important private collector, it is furthermore preserved in very good overall condition.
Not only the original and unrestored dial has taken a very warm color, but the watch also impresses with its very crisp case and the remarquably well defined bezel and lugs. Its simplicity, elegance in the design, together with the rarity of the case material and the large diameter, renders it one of the most exclusive vintage time only wristwatches from the Patek Philippe production.