PATEK PHILIPPE REF 2597 FIRST-SERIES TWO-TIME ZONE YELLOW GOLD
Patek Philippe & Cie, Genève, "Calatrava", No. 729407, case No. 209763, Ref. 2597 HS. Made circa 1959.
Very fine and rare, two time-zone, 18K yellow gold gentleman's wristwatch with three hands and an 18K
yellow gold Patek Philippe buckle. Accompanied by the Extract from the Archives.
Three-body, solid, polished and brushed, flat bezel, concave lugs, band bearing two buttons activating
the second blued steel hour hand forwards and backwards to indicate world time, independently by steps
of one hour at a time.
Matte silver with applied yellow gold and painted indexes, subsidiary seconds dial. Yellow gold "Dauphine"
Cal. 12-400 HS, stamped twice with the Geneva Quality Hallmark, rhodium-plated, "fausses-côtes"
decoration, 18 jewels, straight line lever escapement, cut bimetallic balance adjusted to heat, cold isochronism
and 5 positions, shock-absorber, Breguet balance-spring, swan-neck micrometer regulator.