Brand SEIKO Caliber 7D48 Size 13 1/4 Function SC-BIGD/12-MD/6-JAHR/9-AUT-Quarz Version 24Std/4 Hands Stem 351-510 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery 3023-24X