Brand OTERO Caliber 146 Size 10 1/2 Function Version Hands 0,80x1,40 Stem 8014 Stem (subs.) 8023 (TU) Stem (2 pce) Balance staff 28025 Balance staff (subs.) Mainspring (subs.) 1,4x9,0x0,10 Mainspring (subs.) 03664 Battery