IWC caliber 94900

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Date:Date, Leap Year, Perpetual Calendar
Hands:Hours, Minutes, Day / Night Indication
Astronomical:Sidereal time, Sky chart
Additionals:Power Reserve Indicator, Tourbillon Escapement
IWC caliber 94900

94900 description

The imposing constant-force tourbillon gives the viewer a fascinating inside view of the delicately balanced mechanism. The tourbillon’s cage and upper section are made of titanium. The rhodium-plated escape-wheel and nickel-silver stop-wheel bridge are painstakingly hand-chamfered.

The brushed bottom plate is inlaid with the “Probus Scafusia” stamp – “Good, solid craftsmanship from Schaffhausen” – IWC’s official seal of quality first used in 1903. The retaining plate and power reserve plate are sandblasted and rhodium-plated.

The plate for the astronomical module is likewise made of blasted, rhodium-plated nickel silver. It holds all the displays and technical parts such as wheels, levers and bridges that are needed on the rear side.

All watches using the IWC 94900 movement:

IWC Portugieser Sidérale Scafusia (IW5041-01)

IW5041-01 IWC Portugieser Sidérale Scafusia