The 3990 is a diamond-adorned version of the 3970 Perpetual Calendar, distinguished by a bezel featuring 40 baguette-cut diamonds. It was produced between approximately 1995 and 2005.
Movement Type
Manual Chronograph
Caliber
CH 27-70 QJewels
24
Reserve
60
Frequency
18000
Hands
Small Seconds
Shape
Round
Material
Pink Gold
Glass
Sapphire
Diameter
36.00 mm
Dial Color
Grey
