The Seiko 2A23-0100 is a watch model based on the 2A23 movement.
Parts List
| 200W65HN00 | crystal |
| 200W65HN | crystal |
| 200P03HN03 | crystal - crystal |
| 200P03HN03. | crystal |
| 35E05NA1 | crown - crown |
| FE208BAA1 | case back gasket |
| 86561191 | crystal gasket - plastic gasket for crystal |
| 8656 4290 | crystal gasket |
| 86564290 | bezel gasket - plastic gasket for bezel |
| Z5078C | band - metal band |
| Z5078C-LKG | band - link |
| Z5078C-PB1 | clasp - parts for buckle/clasp |
| Z5078C-BK1G | clasp - clasp |
| 08S21MHH | hand - hour hand |
| 08S33MHM | hand - minute hand |
| 07S11MGH | hand - hour hand |
| 07S11MGM | hand - minute hand |
| 08SC01NG | others - second hand |
| EB0055B0A | others - crown and stem gasket |
| 0354073 | others - winding stem |
| 0801298 | others - date dial |
| 0884141 | others - holding ring for dial |
| 81180229 | others - bracelet fixing pipe |
| 81181459 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 81605319 | others - bracelet fixing pin |
| 82700530 | others - case ring |
| 2A23010098 | others - case |
| 2A23020LXN18 | others - dial |
| 2A2310 | others - machine code |
| 83346232 | others - bezel |
| 3BA100F1BNG | others - second hand |
Caliber 2A23
