REFERENCE 2584J IN 18 KARAT YELLOW GOLD WITH 12-600 CALIBER 30-JEWEL MOVEMENT. 36MM IN DIAMETER. THIS WATCH IS 99% WHAT A BEAUTY. IT WAS MADE IN 1958 AND SOLD IN 1960. THE WATCH HAS AN EXTRACT FROM THE ARCHIVES CONFIRMING ITS DATE OF MANUFACTURE AND SALE. THIS IS A VERY FINE EXAMPLE OF THIS REFERENCE.