ETA 255.431 Exploded diagram BrandETACaliber255.431Size10 1/2FunctionVersionHands0.70x1.20x0.20Stem2502 (=255.111)Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)Battery373MovementsArtno.brandcaliberSizehandsfunctionspecial166002ETA255.43110 1/20.70x1.20x0.20 WatchpartsPart NocaliberdescriptionoriginalArtno.100BMain plate jewelled920001002554110255.111Barrel and train wheel bridge920001102551144255.111Dial fastener920001442551147950.001Mark support920001479500161255.111Center pipe920001612551172255.411Stud for minute wheel920001722554203255.111third wheel920002032551210255.441Third wheel920002102554227255.441Sweep second wheel920002272554242255.441Cannon pinion with driver920002422554250255.111Hour wheel920002502551260255.111Minute wheel920002602551401Winding stem8022502405255.411Winding stem -mouv.part920004052554407255.111Clutch wheel920004072551435255.111Yoke spring920004352551443255.111Setting lever assembled920004432551445BSetting lever spring920004452554450255.111Setting wheel920004502551462255.111Minute train bridge920004622551466255.111Setting mechanism cover920004662551479255.111Pressure spring for setting lever920004792551560255.1119200056025514000255.441Electronic module9200400025534003B9200400325544021955.101Stator9200402195514038255.1119200403825514039B9200403925544046255.111Battery insulator, bottom9200404625514160255.111Wire springs for alarm buzzer9200416025514211255.111Rotor9200421125514407955.101Earth connector (+)9200440795514412955.1019200441295514929255.111Battery9200492925519716255.111Corrector spring920097162551