Patek Philippe 2509 Calatrava Radium Indexes Gubelin Signed RARE (27156)

27156 Patek Philippe 2509 Radium Dial Calatrava co braned by Gubelin, 18k yellow gold case is in excellent condition, the case is full and thick, the case has also developed a warm charming patina, case hallmark at 4 o clock is clearly bold and visible, 18k Patek Philippe vintage tang buckle, the manual wind Patek Philippe caliber 27-400, the movement is covered by its original dust cover, original silver radium dial has developed a very charming patina, this model was delivered to the Gubelin boutique and co branded with the retailers signature, the radium on the dial and hands are original and unaltered, acrylic crystal, screw down case back, size 35mm, thickness 9mm, Excellent Condition with Patek Philippe suede pouch and Patek Philippe archives (on order).


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More about Patek Philippe 2509 Calatrava Radium Indexes Gubelin Signed RARE

This is an 18K yellow gold vintage 1960s's Patek Philippe Amagnetic, 2509. It has a leather strap with a matching 18K Yellow Gold tang buckle. The 34.5mm diameter solid two-body dust-proof cap case, downturned lugs, and rounded bezel, are polished. It has a screwed-down solid case back. The dial is silver with applied gold faceted baton hour markers, inlaid with radium luminous material. The yellow gold dauphine hands are also inlaid with radium luminous material. There is a constant seconds subsidiary dial at the 6 o'clock position. The 9.5mm thick case, dial, and movement are all signed.

The mechanical manual winding Patek Philippe caliber 27-400 movement is rhodium plated, with fausses cotes embellishment, and the Geneva Quality Hall Mark. It's constructed with 18 jewels, a gold lever escapement, a patented Patek Phiippe Gyromax balance adjusted for heat, cold isochronism and 5 positions, and an anti-shock mechanism.

The Patek Philippe 2509 Calatravas have become increasingly difficult to find in desirable condition. The earliest examples were much smaller, while the 2509 was one of the first larger sized (34.5mm) references created under the new Stern ownership of Patek. It was also one of the first water resistant cases to be introduced.