Ref. 3590.50.00 is the predecessor of the well-known 3570.50.00, powered by caliber 861. It is also known as ST 345.0022 (bracelet) or ST 145.0022 (strap). The movement had 17 jewels until 1992, after which later models used the 18-jewel version.
Movement Type
Manual Chronograph
Caliber
861Jewels
18
Reserve
48
Hands
Small Seconds
Shape
Round
Lug Distance
20.00 mm
Material
Stainless Steel
Glass
Plexi
Diameter
42.00 mm
Water Resistance
50.00 m
Dial Color
Black