With an Extract from the Archives confirming production with Breguet numerals in 1989 and sale on January 31st, 1990.
REF. 3960 was among several limited edition commemorative models produced in 1989 to celebrate the 150th anniversary of Patek Philippe. It became a favourite among collectors for its allusions to the officer watches produced in the early 20th century, with their hinged back, enamel-style dial and screw-set lugs. This reference was produced in a limited series of 2000 pieces in yellow gold, 150 pieces in white gold and 50 pieces in platinum.
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