Patek Philippe 2552 Calatrava 2552 Automatic 'DISCO VOLANTE' 18K Yellow Gold 1957 (33137)

33137 Patek Philippe 2552 Calatrava 'DISCO VOLANTE', 2552, 18k yellow gold stepped case on a strap with an 18K yellow gold buckle, automatic movement, caliber 12-600 AT, small seconds at 6 o'clock, silver dial that has aged beautifully with a'sun kissed' patina, applied gold indexes, circa 1950's, diameter: 36mm, thickness: 10.3mm, Excellent Condition with Patek Philippe Archive Certificate; dated April 1957.

$19,900

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More about Patek Philippe 2552 Calatrava 2552 Automatic 'DISCO VOLANTE' 18K Yellow Gold 1957

This is a vintage c. 1950's 18k yellow gold Patek Philippe Calatrava "DISCO VOLANTE", reference 2552. It has an alligator leather strap with an 18K yellow gold buckle, the original rare recessed "Double-P" winding crown, and a low-domed acrylic crystal. There is a screw-down solid case back, inside of which is engraved "Patek Philippe – Geneve," the reference number, and gold hallmarks. The 36mm diameter solid two-body case, downturned lugs, and stepped bezel are polished and brushed. The original silver dial has an aged patina, and applied gold faceted baton hour markers. The Dauphine hands are gold, and there is a perimeter dot minute track. There is a constant seconds subsidiary dial at the 6 o'clock position, and the 10.3mm thick case, dial, and movement are all signed.

The mechanical automatic self-winding Patek Philippe caliber 12-600 AT movement, is stamped twice with the seal of Geneva quality mark, and the Patek Philippe seal as well. It's rhodium-plated with fausses cotes decoration, and it's constructed with 30 jewels, a shock absorber mechanism, and a straight- line lever escapement. It has a Gyromax balance that's adjusted for heat, cold, isochronism and 5 positions. It includes a self-compensating Breguet balance spring, a swan-neck micrometer regulator, and an 18k gold rotor with engine turned engraving that winds in either direction for the ultimate efficiency. The mechanism oscillates at a frequency of 19,800 vph

This Patek Philippe Calatrava reference 2552 was affectionately named the "Disco Volante" or Flying Saucer because it resembled the UFO sightings in the 1950's with its large round, flat shape and stepped bezel.