ETA 870.101BrandETACaliber870.101SizeFunctionSCVersionHands1,10x1,90x0,26Stem= 870.111 (eigen)Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.100870.111Main plate jewelled920001008701110870.111Barrel and train wheel bridge920001108701132870.111Unruh-Schutzbrücke920001328701136870.111Stem cock920001368701144BDial fastener920001448701161870.111Center pipe920001618701203870.111third wheel920002038701215870.111Additional second wheel920002158701216870.111920002168701227870.111Sweep second wheel920002278701243870.111Free cannon pignon920002438701250870.111Hour wheel920002508701290870.111Driving wheel - minute work920002908701405870.111Winding stem -mouv.part920004058701407870.111Clutch wheel920004078701435870.111Yoke spring920004358701443870.111Setting lever assembled920004438701450870.111Setting wheel920004508701466870.111Setting mechanism cover9200046687012535870.111Date indicator maintaining plate9200253587014000870.111Electronic module9200400087014021870.111Stator9200402187014022870.1119200402287014035870.111Power connection9200403587014045870.111Power connection insulator9200404587014046870.111Battery insulator, bottom9200404687014211870.111Rotor9200421187014402870.111Battery connection (-)92004402870149299360Battery920049299360