HATTORY-SEIKO 2620A Exploded diagram Brand HATTORY-SEIKO Caliber 2620A Size Function Version Hands Stem 354-261 Stem (subs.) 354-263 (lang) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery MovementsArtno.brandcaliberSizehandsfunctionspecialHATTORY-SEIKO2620A Watchparts Part NocaliberdescriptionoriginalArtno.210BThird wheel and pinion231-261/ -26098402312614060Coil -red4002-262984040022624400Battery clamp (-)4270 260984042702604405Battery connection4242 26098404242260