HATTORY-SEIKO 2906BrandHATTORY-SEIKOCaliber2906SizeFunctionVersionHandsStem354-710Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)401-581 (-582) AUTMainspring (subs.)1.05x 7,9 AUTBatteryWatchpartsPart NocaliberdescriptionoriginalArtno.180= 2906Barrel with drum + cover205-7109840205710250= 2906Hour wheel0271-71198402717114012906Winding stem03547109840354710721BBalance cplt. -regulated3117109840311710771B = 2706Mainspring AUT sliding attachemnet401-5829840401582771= 2706Mainspring AUT sliding attachemnet401-581984040158111432906Oscillating weight500-710984050071014812906Ratchet wheel driving wheel505-7109840505710.2906MAIN PLATE(PLASTIC)01017109840101710.2906CENTER WHEEL BRIDGE01227109840122710.2906CENTER WHEEL AND PINION02217109840221710.2906Cannon pinion02257119840225711.2906FOURTH WHEEL AND PINION02417119840241711.2906Setting lever03837109840383710.2906DATE DIAL08015849840801584