Brand HELVETIA Caliber 838 Size 11 1/2 Function SC-AUT Version Hands 0,90x1,35 Stem 6325 Stem (subs.) Ers.: 6530 Stem (2 pce) Balance staff 35507 INCA Balance staff (subs.) Mainspring (subs.) 1,4x10,0x0,11 Mainspring (subs.) Battery