IWC 401

BrandIWCCaliber401Size10FunctionVersionHandsStem6338Stem (subs.)Stem (2 pce)Balance staff30020Balance staff (subs.)Mainspring (subs.)Mainspring (subs.)Battery

Watchparts

Part NocaliberdescriptionoriginalArtno.
275Sweep second pinion94200275C853
401Winding stem8026338
723Balance staff ST -shock-absorber80230020
770B (=IWC 401Mainspring94200770401
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