Description

Details

IWC - IW5901-02

Portugieser Constant-Force Tourbillon Double Moon Platinum / Ardoise

Brand:	IWC
Family:	Portugieser
Reference:	IW5901-02(aka: IW590102)
Name:	Portugieser Constant-Force Tourbillon Double Moon Platinum / Ardoise
Produced:	2016
Limited:	Yes, 1 unit

Case

Material:	Platinum
Glass:	Sapphire
Back:	Open
Shape:	Round
Diameter:	46.00 mm
Height:	13.40 mm
W/R:	30.00 m

Dial

Color:	Grey
Finish:	Sunburst
Indexes:	Arabic Numerals
Hands:	Feuille

Description

The IWC Portugieser Constant-Force Tourbillon reference IW5901-02 was made in 2016 as a unique piece. It features a Platinum case and a Grey dial. Inside ticks the hand-wound caliber 94800.

Movement

IWC manufactured 94800 calibre (94000-calibre family) is a hand-wound movement with a tourbillon escapement. A patented constant force mechanism is integrated into the tourbillon, ensuring a stable amplitude of the balance - visible through 1 second jumps of the tourbillon. After having run for 48 hours, the constant force mechanism is decoupled and the tourbillon will move in regular 1/5th of a second intervals. It furthermore features a day/night indication, double moonphase display and a 96 hour power reserve.

Type:	Handwound
Brand:	IWC
Caliber:	94800
Display:	Analog
Jewels:	43
Reserve:	96 h
Frequency:	18000 bph
Time:	Minutes, Hours, Small Seconds
Astronomical:	Moonphase
Additionals:	Constant Force Mechanism, Tourbillon Escapement, Power Reserve Indicator