Brand BIFORA Caliber 910.1 (AUT) Size 11 1/2 Function SC-AUT Version Hands 0,85x1,40 Stem 6209 Stem (subs.) 6210 TU Stem (2 pce) Balance staff 29615 Bifora Balance staff (subs.) Mainspring (subs.) 1,2x8,5x0,95Sp Mainspring (subs.) Battery