The Seiko 2A23-0490 is a watch model based on the 2A23 movement.
Parts List
| 190W71HN00 | crystal |
| 190P03HN03 | crystal - crystal |
| 35E05NS1 | crown - crown |
| 35E05NA1 | crown - crown |
| FE198BAA1 | case back gasket - case back gasket |
| 86568610 | crystal gasket - plastic gasket for crystal |
| 86568370 | bezel gasket - plastic gasket for bezel |
| Z5231S | band - metal band |
| Z5231S-LKS | band - link |
| Z5231G | band - metal band |
| Z5231G-LKG | band - link |
| Z5231G-PB1 | clasp - parts for buckle/clasp |
| Z5231G-BK1G | clasp - clasp |
| Z5231S-PB1 | clasp - parts for buckle/clasp |
| Z5231S-BK1S | clasp - clasp |
| 08S41BGH | hand - hour hand |
| 08S41BGM | hand - minute hand |
| 08S41BSH | hand - hour hand |
| 08S41BSM | hand - minute hand |
| 3BA125F1BNG | others - second hand |
| 3BA125F1BNS | others - second hand |
| 81181459 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 81607199 | others - bracelet fixing pin |
| 0801298 | others - date dial |
| 0884141 | others - holding ring for dial |
| 0354073 | others - winding stem |
| EB0055B0A | others - crown and stem gasket |
| 08SC29NS | others - second hand |
| 2A230490 | others - case back |
| 2A23049061 | others - case |
| 2A23049075 | others - case |
| 2A23049098 | others - case |
| 2A230720XG14 | others - dial |
| 2A230720XS13 | others - dial |
| 2A230720XS24 | others - dial |
| 2A2310 | others - machine code |
| 82333551 | others - bezel |
| 82333559 | others - bezel |
| 82712330 | others - case ring |
| 08SC29NG | others - second hand |
| 190W71HN00 | crystal |
| 190P03HN03 | crystal - crystal |
| 35E05NS1 | crown - crown |
| 35E05NA1 | crown - crown |
| FE198BAA1 | case back gasket - case back gasket |
| 86568610 | crystal gasket - plastic gasket for crystal |
| 86568370 | bezel gasket - plastic gasket for bezel |
| Z5231S | band - metal band |
| Z5231S-LKS | band - link |
| Z5231G | band - metal band |
| Z5231G-LKG | band - link |
| Z5231G-PB1 | clasp - parts for buckle/clasp |
| Z5231G-BK1G | clasp - clasp |
| Z5231S-PB1 | clasp - parts for buckle/clasp |
| Z5231S-BK1S | clasp - clasp |
| 08S41BGH | hand - hour hand |
| 08S41BGM | hand - minute hand |
| 08S41BSH | hand - hour hand |
| 08S41BSM | hand - minute hand |
| 3BA125F1BNG | others - second hand |
| 3BA125F1BNS | others - second hand |
| 81181459 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 81607199 | others - bracelet fixing pin |
| 0801298 | others - date dial |
| 0884141 | others - holding ring for dial |
| 0354073 | others - winding stem |
| EB0055B0A | others - crown and stem gasket |
| 08SC29NS | others - second hand |
| 2A230490 | others - case back |
| 2A23049061 | others - case |
| 2A23049075 | others - case |
| 2A23049098 | others - case |
| 2A230720XG14 | others - dial |
| 2A230720XS13 | others - dial |
| 2A230720XS24 | others - dial |
| 2A2310 | others - machine code |
| 82333551 | others - bezel |
| 82333559 | others - bezel |
| 82712330 | others - case ring |
| 08SC29NG | others - second hand |
Caliber 2A23
