IWC Movements
Movements in the bulk of IWC's lower range watches and chronographs (including the Portuguese Chronograph) use movements delivered directly from Swatch-owned ETA, previously in line with industry practice IWC purchased ebauche kits from ETA and its subsidiary Valjoux which it heavily modified but due to ETA's decision to stop selling ebauche kits to its competitors it now delivers the movements fully completed. It is no longer the case that the Caliber 30110 is a modified ETA 2892A2, and the Caliber 79230/79320/79350 is a modified ETA/Valjoux 7750. The shift began taking place in approximately 2006 according to industry sources and was entirely complete across all movements by 2010.
Movements not based on ETA movements include the Caliber 5000 and the Caliber 8000, which use the Pellaton winding system, and the pocket watch movements used in the Portuguese F.A. Jones and other IWC pocket watches. IWC also used a JLC meca-quartz movement in their older Portofino chronographs.
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