Brand BIFORA Calibre 91 Size 9 3/4 Function Version Hands 0,85x1,40 Stem 6209 Stem (subs.) 6210 TU Stem (2 pce) Balance staff 29615 Biforashock Balance staff (subs.) Mainspring (subs.) 1,2x8,5x0,095 Mainspring (subs.) Battery