HATTORY-SEIKO 8J40 Brand HATTORY-SEIKO Caliber 8J40 Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.4018J40Winding stem03514069840351406.8J40MAIN PLATE(PLASTIC)01004069840100406.8J40TRAIN WHEEL BRIDGE01253889840125388.8J40CENTER WHEEL AND PINION02214069840221406.8J40FOURTH WHEEL AND PINION02414089840241408.8J40Hour wheel02714059840271405.8J40Setting lever03833889840383388