Brand OTERO Caliber 1371 Size 6 3/4x8 Function CLD Version Hands 0,65x1,00 Stem 5606 Stem (subs.) 5619 lg Stem (2 pce) Balance staff 28507 (neu) Balance staff (subs.) 27507 (alt) Mainspring (subs.) 1,2x7,0x0,08 Mainspring (subs.) Battery