The Patek Philippe 3448 Perpetual Calendar was the world's first automatic perpetual calendar, utilizing the 27-460Q caliber. Only about 586 units were produced, including this 1977 model sold by Antiquorum, which features a yellow gold case and a silver dial signed by the retailer 'Howes'.
Shape
Round
Material
Yellow Gold
Glass
Plexi
Thickness
12.00 mm
Diameter
37.00 mm
Dial Color
Silver
