Brand LORSA Caliber 237BCT (AUT) Size 13 1/4 Function SC-CLD-AUT Version Hands 0,80x1,40 Stem 7515 Stem (subs.) Stem (2 pce) Balance staff 34201 Balance staff (subs.) 33401 INCA / 35001 SSR Mainspring (subs.) 1,65x8,5x0,09Sp. Mainspring (subs.) Battery