An extreamly fine and very rare 18k yellow gold automatic perpetual calendar with phases of the moon.
This watch belongs to the early 2nd. generation of ref.3448, produced between 1966 and 1968, characterized by the small size of the dates around the moonphase sector, PP crown, small size hour index with 60 minutes dots and raised hard enamel signature.
This watch comes with the original yellow gold bracelet and the extract from the archives.
The early 2nd generation were only about 15-20 pieces produced annually. So Patek Philippe's technicians were able to pay the utmost attention to each piece.