Reference 570 was Patek Philippe's very first "large" Calatrava model that was produced in series. At the time of production, the reference was the largest time-only wristwatch produced by the firm. Manufactured from 1938 to 1972, the model was cased predominantly in yellow gold, and rarely in pink gold, white gold, stainless steel and platinum. The reference featured a multitude of dial variations. While some were fitted with Breguet numerals, others were two-tone in design. A total of 23 570s in stainless steel have appeared publicly.

Only three reference 570s signed by the vaunted Venezuelan retailer were previously known to the market, two in 18K pink gold and one in 18K yellow gold. The present example is the first stainless steel 570 signed Serpico y Laino to appear on the market, fitted with a stunningly aged Arabic-dot two-tone dial with railway track remaining completely original and unrestored. An exceptionally dynamic combination, it is ensconced in a likely unpolished case, with a sharply defined bezel and full lugs, giving it unprecedented appeal on the wrist beyond its 36mm case size.

The present watch was purchased directly from the widow of the original owner in Venezuela, making this "two-owner" watch highly desirable for its unique aesthetics and originality.