Produced in 2016 as a 5-piece limited edition, the IWC Portugieser Constant-Force Tourbillon ref. IW5901-05 is housed in a platinum case with a silver dial. It is powered by the manual-winding caliber 94800.
Movement Type
Manual
Caliber
94800Jewels
43
Reserve
96
Frequency
18000
Hands
Small Seconds
Shape
Round
Material
Platinum
Glass
Sapphire
Thickness
13.40 mm
Diameter
46.00 mm
Water Resistance
30.00 m
Dial Color
Silver
