Patek Philippe Calatrava ref. 570 first series
Patek Philippe reference 570 in 18kt yellow gold. The ref. 570 was the first large mass-produced Calatrava, proportions and shape are similar to the Ref. 96, but it differs in the diameter (35 mm instead of 30.5 mm) it saw production from 1938 until 1972 in 3 distinct series: First series (1938): Caliber 12-120 Second series (1950): Caliber 12-400, called Ref. 570 HL Third series (1960): Caliber 27 AM 400, called Ref. 570 AM The Ref. 570 was available in yellow, white or pink gold, and rarely in stainless steel (40watches known)
Patek Philippe
570
1940
Cream
35mm
Calatrava
Y gold 18k