570G, Calatrava, White Gold 330.026 Its time apertures are finished

Its time apertures are finished by hand

This example is entirely original and unrestored

92400 is the first-ever automatic chronograph from any Wilsdorf manufacture (a good decade ahead of Rolex)

which averages the result from both escapements to one final gear train

Not just a chronograph to measure elapsed time

570G, Calatrava, White Gold 330.026 Its time apertures are finishedA ref. 570 Patek Philippe Calatrava in white gold. The 570 is a heavily restrained, yet 35. 5mm Calatrava from the mid century. This 1966 example features an engraved enamel sunburst dial, dauphine hands, calibre 27 SC with centre seconds, and beautiful case condition overall.