The Patek Philippe reference 3990 serves as a diamond-adorned variation of the 3970 Perpetual Calendar, featuring 40 baguette diamonds set into the bezel. This model was available for purchase between approximately 1995 and 2005. Image provided by Sotheby's.
Shape
Round
Material
Platinum
Glass
Sapphire
Diameter
36.00 mm
Dial Color
Grey