HERMLE 451-050 Exploded diagram Brand HERMLE Caliber 451-050 Clock version Standuhrwerk Mechanism Pendel/Gewichtszug Version Westminster (8 Hammer hinten) Battery Size 120x120x32 mm Size 160 mm Mainspring Mainspring MinuteHand 2.0x2.0 mm Hourhand 4.5 mm MovementsArtno.brandcaliberSizehandsfunctionspecialHERMLE451-050PL 55.0.HERMLE451-050PL 75.0.184136HERMLE451-050PL 85.0184138HERMLE451-050PL 94.0.HERMLE451-050PL 114.0. WatchpartsPart NocaliberdescriptionoriginalArtno.B008-Sternrad -HebnägelradB008-00270800000800270B017-Schlagrolle 4/4 SchlagB017-00071800001700071B018-Hammerspiel 4/4 SchlagB018-00373800001800373