Brand GRUEN Caliber 470 (SC) Size 11 1/2 Function SC-AUT Version Hands 0,65x1,20 Stem 5708 Stem (subs.) Stem (2 pce) Balance staff 30207 Balance staff (subs.) 30602 INCA Mainspring (subs.) 1,4x8,0x0,09Sp Mainspring (subs.) Battery