Portugieser Constant-Force Tourbillon Double Moon Red Gold / Ardoise

Ref. IW5901-01

The IWC Portugieser Constant-Force Tourbillon reference IW5901-01 was made in 2016 as a unique piece. It features a Red Gold case and a Grey dial. Inside ticks the hand-wound caliber 94800.

Release year

2016

Case diameter

46 mm

Thickness

13.4 mm

Water resistance

30 m

Case material

Red Gold

Crystal

Sapphire

Dial

Grey

Movement

IWC caliber 94800

Movement type

Handwound

Display

Analog

Power reserve

96 h

Frequency

18000 vph

Jewels

43

Complications

Constant Force Mechanism, Hours, Minutes, Moonphase, Power Reserve Indicator, Small Seconds, Tourbillon Escapement