Brand B.F.G. Calibre 840 Size 8 3/4 Function SC Version Hands 1,00x1,40 Stem 7226 Stem (subs.) Stem (2 pce) Balance staff 38010 Balance staff (subs.) 38009 Mainspring (subs.) 1,1x9,5x0,10 Mainspring (subs.) Battery