Brand AS Calibre 1597 Size 13 Function Version Hands 0,80x1,30 Stem 7215 Stem (subs.) Stem (2 pce) Balance staff 31204 Balance staff (subs.) 31502 INCA / 31604 SSR Mainspring (subs.) 1,7x11,5x0,135 Mainspring (subs.) Battery