Brand LORSA Caliber 237B 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