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Big Pilot’s Watch Constant-Force Tourbillon Edition “Le Petit Prince” Platinum

Platinum case, Manual-winding, Diameter 46.2mm.

Made in Schaffhausen, Switzerland.

Brand : IWC SCHAFFHAUSEN
Model Number : IW590302
Gender : Mens
Material : Platinum
Movement : IWC-manufactured movement, Manual-winding
Calibre : 94805 Calibre
Crystal : Sapphire glass, convex, antireflective coating on both sides
Functions : Tourbillon with integrated constant-force mechanism, Moon phase display, Power reserve display
Water Resistance : 6 Bar
Bracelet Strap : Brown calfskin strap, Strap width 22 mm
Power Reserve : 96 hours Power Reserve


Big Pilot’s Watch Constant-Force Tourbillon Edition “Le Petit Prince”

BIG PILOT’S WATCH CONSTANT-FORCE TOURBILLON EDITION “LE PETIT PRINCE” PLATINUM

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The Big Pilot’s Watch Constant-Force Tourbillon Edition “Le Petit Prince” Story

The 94000-calibre is a hand-wound movement with two barrels, which provide the necessary energy for a number of different complications. The 94800-calibre version provides higher torque to drive the constant-force tourbillon and additionally, powers the moon phase and the power reserve displays. In the 94900 version, it provides the power needed for the astronomical module in the Portugieser Sidérale Scafusia. This extravagant timepiece features displays for sidereal and solar time, the times of sunrise and sunset, and shows the section of the night sky currently visible. In the 94200 calibre, the second barrel powers the separate wheeltrain for the discs of the digital Pallweber display for the hours and minutes.

IWC integrated a patented constant-force mechanism into a tourbillon, which ensures that the amplitude of the balance – and thus the watch’s accuracy – remain absolutely constant, initially by disconnecting the escapement from the direct flow of energy generated by the gear train. The energy is stored temporarily in a balance spring and dispensed to the escape wheel. In the process, the tension in the spring is increased once a second and the seconds hand in the tourbillon advances in one-second steps. This ensures an extremely regular and precise rate over a period of at least 48 hours. After approximately 2 days, the mechanism switches from constant-force mode to normal mode, as indicated by the one-fifth-of-a-second movements in the seconds hand.

The IWC-manufactured 94805 calibre also features a perpetual moon phase display. The little prince stands on the moon. A 96-hour power reserve is stored in two barrels.

Feature - 0 Big Pilot’s Watch Constant-Force Tourbillon Edition “Le Petit Prince” Platinum
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