INS 3.691BrandINSCaliber3.691SizeFunctionVersionHandsStem6004Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.100BMain plate jewelled106FHF 691NBarrel and train wheel bridge121FHF 60-21Screw for balance bridge125FHF 60Pallet bridge182FHF 692Barrel with drum + cover19569NBarell arbor206691Center wheel drilled without cannon21069-21Third wheel220691Second wheel -short pivot245691Cannon pignon sweep sec. H = 27025060Hour wheel26069-21Minute wheel274691Transmission wheel - sweep sec.30769-21Rücker mit bewgl. Spiralklötzchen-Träger346FHF 60Decksteinplättchen unten für Ankerrad/Hemmungsrad401FHF 69NWinding stem40769.21Clutch wheel41069-21Winding pignon415FHF 69Ratchet wheel420FHF 692Crown wheel434FHF 69NClicking spring43569-21Yoke spring44069-21Yoke spring443FHF 69NSetting lever assembled445FHF 69NSetting lever spring45069-21Setting wheel471691Friction spring f. sweep sec.-pinion70369-21Escape wheel -pinion 1 lower end-piec.71069-21Pallet fork -pinion 1 lower end-piec.72169-21Balance cplt. -regulated72869-21Balance staff ST -shock-absorber73075 / 75Roller770BMainspring255869-21Doubel-toothed hour wheel