IWC - IW5901-07

Portugieser Constant-Force Tourbillon Double Moon Red Gold / Black

Brand: IWC
Family: Portugieser
Reference: IW5901-07 (aka: IW590107)
Name: Portugieser Constant-Force Tourbillon Double Moon Red Gold / Black
Produced: 2017
Limited: Yes, 1 unit

Case

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

Dial

Color: Black
Finish: Sunburst
Indexes: Arabic Numerals
Hands: Feuille
IW5901-07 : IWC Portugieser Constant-Force Tourbillon Double Moon Red Gold / Black

Description

The IWC Portugieser Constant-Force Tourbillon reference IW5901-07 was made in 2017 as a unique piece. It features a Red Gold case and a Black dial. Inside ticks the hand-wound caliber 94800.

Movement

IWC caliber 94800 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

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