HERMLE 781-800 Exploded diagram Brand HERMLE Caliber 781-800 Clock version Mechanism Version Battery Size Size Mainspring Mainspring MinuteHand Hourhand MovementsArtno.brandcaliberSizehandsfunctionspecial. WatchpartsPart NocaliberdescriptionoriginalArtno.B021-PendelfederB021-00060070304B026-Zugseil cpltB026-01246800002601246