HERMLE 351-021 Exploded diagram Brand HERMLE Caliber 351-021 Clock version Regulatorwerk Mechanism Pendel/Federzug Version Bim-Bam (3 Hammer unten rechts) Battery Size 100x100x32 mm Size 90 mm Mainspring Mainspring MinuteHand 2.0x2.0 mm Hourhand 4.5 mm MovementsArtno.brandcaliberSizehandsfunctionspecialHERMLE351-021PL 26.5HERMLE351-021PL 34.0 WatchpartsPart NocaliberdescriptionoriginalArtno.B007-Beisatzrad GWB007-00030800000700030