The Seiko 2A23-0020 is a watch model based on the 2A23 movement.
Parts List
| 190W53LN | crystal |
| 190W53LN00 | crystal |
| 32M13NS1 | crown |
| 32M13NA1 | crown |
| 0F150BAA | case back gasket |
| 0F150BAA1 | case back gasket - case back gasket |
| 86564110 | crystal gasket - plastic gasket for crystal |
| 86564130 | bezel gasket |
| G5007S | band - metal band |
| 08S13MKH | hand - hour hand |
| 08S13MKM | hand - minute hand |
| 07SC17NS | others - second hand |
| 3BA075F1BNS | others - second hand |
| EB0055B01 | others - crown and stem gasket |
| 83138950 | others - case ring |
| 0801298 | others - date dial |
| 0884141 | others - holding ring for dial |
| 2A23002061 | others - case |
| 2A23054LXB1L | others - dial |
| 2A2310 | others - machine code |
| 83345099 | others - bezel |
| A130BS | others - push pin |
| 0354073 | others - winding stem |
| EB0055B0 | others - crown gasket |
Caliber 2A23
