TISSOT 2451BrandTISSOTCaliber2451Size11 1/2FunctionSCVersionHands0,90x1,50Stem5919Stem (subs.)Stem (2 pce)Balance staff28111Balance staff (subs.)Mainspring (subs.)1.20x9.5x0.105Mainspring (subs.)2950BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.227Sweep second pinion965014801275245= 781Cannon pignon sweep sec. H = 270H = 21098800245781401Winding stem8025919407= 781-1Clutch wheel988004077811410/1= 781-1Winding pignon988004107811415= 781-1Ratchet wheel965014801100445= 781Setting lever spring98800445781705BEscape wheel -pinion straigt piv.988007052451710= 781-1Pallet fork -pinion 1 lower end-piec.988007107811721BBalance cplt. -regulated988007212451723Balance staff ST -shock-absorber80228111