The Seiko 3E23-0A20 is a watch model based on the 3E23 movement.
Parts List
| 190W53LN | crystal |
| 190W53LN00 | crystal |
| 32M29NA1 | crown |
| 32M29NS1 | crown |
| AC004BA1 | case back gasket |
| FH1930B01 | case back gasket - case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| FH1930B0 | case back gasket |
| 8656-4110 | crystal gasket |
| 86564110 | crystal gasket - plastic gasket for crystal |
| 86564130 | bezel gasket |
| 8656-4130 | bezel gasket |
| G5100S | band - metal band |
| 08S21MZH | hand - hour hand |
| 08S33MZM | hand - minute hand |
| 07S27BSH | hand - hour hand |
| 07S27BSM | hand - minute hand |
| 3BA125F1BNS | others - second hand |
| 3BA125F1BAR | others - second hand |
| 08SC29NS | others - second hand |
| 0801752 | others - date dial |
| 0884155 | others - holding ring for dial |
| 0351546 | others - winding stem |
| 3E230A20 | others - case back |
| 3E230A2061 | others - case |
| 3E230B2LXS13 | others - dial |
| 3E230B60XS13 | others - dial |
| 82340339 | others - bezel |
| 82821110 | others - case ring |
| A130BS | others - push pin |
| 08SC29ER | others - second hand |
Other models with the same movement