Brand H.P.P. Caliber 6031 Size 10 1/2 Function SC-CLD Version Hands 0,80x1,40 Stem 8011 Stem (subs.) Stem (2 pce) Balance staff 36502 Balance staff (subs.) Mainspring (subs.) 1,25x12,0x0,11 Mainspring (subs.) Battery