Brand CERTINA Caliber 19-45 Size 8 3/4 Function SC-AUT Version Hands 0,80x1,30 Stem 7607 Stem (subs.) Stem (2 pce) Balance staff 30807 INCA Balance staff (subs.) 30808 INCA Mainspring (subs.) 1,3x7,5x0,07AUT Mainspring (subs.) 3189 X Battery