HELVETIA 831

BrandHELVETIACaliber831Size11 1/2FunctionSCVersionHands0,90x1,35Stem6325Stem (subs.)Stem (2 pce)Balance staff29811 INCABalance staff (subs.)Mainspring (subs.)1,35x10,0x0,12Mainspring (subs.)Battery

Watchparts

Part NocaliberdescriptionoriginalArtno.
182BBarrel with drum + cover93900182831
401Winding stem8026325
420BCrown wheel93900420831
443BSetting lever assembled93900443831
445Setting lever spring93900445831
721BBalnace cplt. -for shock-absorber93900721831
723Balance staff ST -shock-absorber80229811
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