This watch is in the founders Iconic collection of Patek Philippe watches and not for sale.

Patek Philippe 2503J (known as the bunny ear lugs).  The watch is made in 18K yellow gold and measuring 21 x 41mm. The watch is fitted with a 9-90 caliber 18-jewel manual wind movement # 975183, case # 674900. This reference an extremely rare  watch made in yellow gold and is 1 of 10 known to exists.  The watch is fitted with its original silvered white dial with 3 Arabic numerals and dagger hour markers.  The watch has its original crystal, and dial.  The watch is fitted with a mat brown leather strap, and its original 18K Patek buckle.  The watch was made in the mid 1950's

Condition: 

This example is extremely well preserved, with its original dial, crown, crystal, and very deep hallmarks.  The watch has not been polished.

Essay: 

2503:  Reference 2503 was launched in1951 and is only known to have been cased in yellow gold and pink gold. The present example is one of less than ten known today in yellow gold.   Its rectangular shape is highlighted by the very prominent lugs and its silver dials set with Arabic and arrow shaped numerals. 

Upon first seeing the rare Ref. 2503, collectors will immediately notice the ‘bunny ear lugs’ on the sharp, 18K yellow gold Markowsky case, which give this reference somewhat of a whimsical yet highly refined look when secured to the wrist by the original black lizard strap.

Additionally, it’s worth noting that the watch has a distinct depth to it when on the wrist, thanks to the domed crystal that follows the curvature of the case. All of this is tied together beautifully by the clean aesthetic of the dial, with its applied numerals and slender leaf-shaped hands that are sure to excite for generations to come.