The Patek Philippe with reference 590 is one of the first versions of the Calatrava series by Patek Philippe. Production of the Reference 590 began in 1938 and was available in both yellow and rose gold.
The Patek Philippe with reference 96 is the first version of the Calatrava series by Patek Philippe. Production of the Reference 96 began in 1932 and was available in yellow gold, rose gold, platinum, white gold / rose gold and steel. The reference 96 was in production for 30 years and was eventually superseded by the reference 3796. Above all, the version in rose gold is rarely found today and much sought after by international collectors.