The Seiko 2A23-0190 is a watch model based on the 2A23 movement.
Parts List
| 190W71HN00 | crystal |
| 190P03HN03 | crystal - crystal |
| 35E05NA1 | crown - crown |
| FE198BAA1 | case back gasket - case back gasket |
| 86572570 | crystal gasket - plastic gasket for crystal |
| 8657-2570 | crystal gasket |
| 86568370 | bezel gasket - plastic gasket for bezel |
| 86204071 | band - other |
| Z5150C | band - metal band |
| Z5150C-LKG | band - link |
| Z5150G | band - metal band |
| Z5150G-LKG | band - link |
| Z5150G-PB1 | clasp - parts for buckle/clasp |
| Z5150G-BK1G | clasp - clasp |
| Z5150C-PB1 | clasp - parts for buckle/clasp |
| Z5150C-BK1S | clasp - clasp |
| 08S31MHH | hand - hour hand |
| 08S31MHM | hand - minute hand |
| 3BA075F1BNG | others - second hand |
| 3BA125F1BNG | others - second hand |
| 07SC17NG | others - second hand |
| 08S17CGH | others - hour hand |
| 08S17CGM | others - minute hand |
| 0801298 | others - date dial |
| 0884141 | others - holding ring for dial |
| EB0055B0A | others - crown and stem gasket |
| 0354073 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81181459 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 81607199 | others - bracelet fixing pin |
| 2A23019075 | others - case |
| 2A23019098 | others - case |
| 2A23040LXG18 | others - dial |
| 2A230420XS19 | others - dial |
| 2A2310 | others - machine code |
| 82330951 | others - bezel |
| 82712330 | others - case ring |
| 08SC29NG | others - second hand |
Caliber 2A23
