Calatrava 570 G - White gold case on leather strap, original pin buckle, applied stick markers, dauphine hands, plexiglass, hand wound movement, caliber 27 SC. The reference 570, introduced in the 1930s alongside the first Calatrava (ref. 96), was essentially a larger version of the 96, increasing in size from 31mm to an impressive 35mm. Produced for 30 years, its timeless design remains modern, especially with its center second. Beyond its oversized case, the 570 features the sleek flat bezel that defined the Calatrava's enduring appeal, cementing its status as one of the greatest dress watches ever made.