IWC - IW5903-03

Big Pilot Constant-Force Tourbillon Le Petit Prince / Red Gold

Brand: IWC
Family: Big Pilot
Reference: IW5903-03 (aka: IW590303)
Name: Big Pilot Constant-Force Tourbillon Le Petit Prince / Red Gold
Produced: 2018
Limited: Yes, 10 units


Material: Red Gold
Glass: Sapphire
Back: Closed
Shape: Round
Diameter: 46.00 mm
Height: 13.50 mm
Lug Width: 22.00 mm
W/R: 60.00 m


Color: Blue
Finish: Sunburst
Indexes: Arabic Numerals
Hands: Alpha

Price in euro


The IWC Big Pilot IW5903-03 was introduced in late 2018. It features a red gold case (hardened) and a blue dial. Inside is the hand-wound caliber 94805.


IWC manufactured 94805 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.

Reserve:96 h
Frequency:18000 bph
Time:Day / Night Indication, Minutes, Small Seconds
Additionals:Constant Force Mechanism, Tourbillon Escapement, Power Reserve Indicator

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