LORSA 237 Brand LORSA Caliber 237 Size 10 1/2 Function Version Hands 0,80x1,40 Stem 7515 Stem (subs.) Stem (2 pce) Balance staff 34201 Balance staff (subs.) 33401 INCA / 35001 SSR Mainspring (subs.) 1,65x9,0x0,10 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027515407clutch wheel95600407237410Winding pignon95600410237420BCrown wheel95600420237445BSetting lever jumper combinded95600445237723Balance staff ST -shock-absorber80234201723Balance staff, pivoted80233401