Patek Philippe 2551J Vintage Automatic "Disco Volante" Calatrava Watch Retailed by Gueblin. circa 1959

Introduction:
This Patek Philippe 2551J "Disco Volante" automatic Calatrava is made in 18K yellow gold. The watch measures 36mm in diameter, powered with an 30-Jewel 12-600 AT caliber automatic movement, #766489 / #2609789. The Watch was made in 1959 and sold February 24, 1960.  The watch is accompanied with an Extract from The archive confirming it's date of manufacture and further sale.  The watch is further accompanied with a Patek strap and Patek gold buckle. The dial is original, with the hard enamel signature, and double signed with the Retailer "Gueblin".  The dial is in immaculate original condition with its original patina.   If you look closely at the picture of the close up back of the inventory numbers on the back of the lug.

Date & Paperwork: 
The watch was made in 1959.  The watch will be accompanied with an extract from the archives, confirming its date of manufacture and further sale.  Additionally, the watch comes with a one year movement guarantee.

Essay: 
Initially introduced in 1954, the Patek Philippe reference 2551 is powered by the self-winding 30-jewel, 12-600 AT caliber movement. The reference was introduced in four case materials with the production discontinued in 1960. The case was made by A. Wenger. It is believed that approximately 1,100 pieces were encased in its production span of 7 years. approximately 150 pieces per year.  That figures out to be only12-13 watches per month

Specifications: 
Reference Number: 2551J
Year Manufactured: 1958
Movement: Automatic 12-600 AT 30-jewels 
Case Diameter: 36mm
Case Thickness: 11mm