Brand STANDARD Caliber 609 Size 6 3/4x8 Function Version Hands 0,60x1,10 Stem 6023 Stem (subs.) 6074/6052 Stem (2 pce) Balance staff 28410 Balance staff (subs.) 28013/28029 Mainspring (subs.) 1,50x7,50x0,08 Mainspring (subs.) Battery