Brand FHF Caliber 123-1 Size 6 3/4x8 Function SC Version Hands 0,65x1,15 Stem 5903 Stem (subs.) Stem (2 pce) Balance staff 28104 Balance staff (subs.) 27701 INCA Mainspring (subs.) 1,35x7,5x0,08 Mainspring (subs.) Battery