HATTORY-SEIKO 6139B Exploded diagram BrandHATTORY-SEIKOCaliber6139BSizeFunctionVersionHandsStem354-616 NLStem (subs.)Stem (2 pce)Balance staff315-611 (29823 Boley)Balance staff (subs.)Mainspring (subs.)1.00x10.5 AUTMainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.443B = 6139BSetting lever383-61198403836118020BMinute counting wheel (30m)902-612025998