With a Patek Philippe Extract from the Archives confirming production of the present watch in 1976 and its subsequent sale on September 21st of the same year. The extract further states there are 48 diamonds weighing approximately 3.16 carats.
To the best of our knowledge the present watch has never before been offered in public. This watch is believed to be the first example of the reference 4390/1 to be offered at auction.
With Patek Philippe black suede pouch.