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PATEK PHILIPPE 2509 CALATRAVA 18K

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PATEK PHILIPPE 2509 CALATRAVA 18K
Details
Stock # SKU20072
Stock # 20072
Model Name Calatrava
Brand
Model Ref # 2509
Condition Mint
Gender Mens
Movement Manual
Case 18K Yellow Gold
Case Shape Round
Case Size 35mm x 9mm
Crystal
Band / Strap Strap
Dial Silver
Caseback Solid
Complications
Year 1959
Additional Information
Sold
Description
The reference 2509 introduced Patek Philippe's earliest water resistant case. The water resistance problem was addressed via the massive screwback, which was a huge functional improvement over the ordinary snap-on caseback. This Calatrava is also quite large for its era at 35mm diameter.

Case is 18k yellow gold with dimensions of 35mm by 9mm thick. Generously domed acyrlic crystal. Oversized winding crown signed with the Calatrava Cross. Inside the massive screw back is a soft dust cap which not only provides another level of protection from the elements, but also shields the movevement from magnetism.

Movement is the Patek Philippe manual winding Anti-Magnetic Caliber 27AM600 with 18 jewels, hand adjusted to heat, cold and isochronism and in 5 positions and stamped with the Geneva Seal.

Dial is silver with applied golden hour markers and sword style hands. Subsidiary seconds dial at 6 o'clock.

Patek Philippe strap with Patek tang buckle.
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