The Seiko 2P20-0230 is a watch model based on the 2P20 movement.
Parts List
| 190W69HN00 | crystal |
| 190P05HN03 | crystal |
| 30M27NA1 | crown |
| 30M41NA1 | crown - crown |
| 0Z0034B01 | case back gasket - crown and stem gasket |
| 0F155BAA1 | case back gasket - case back gasket |
| 86564110 | crystal gasket - plastic gasket for crystal |
| 86564130 | bezel gasket |
| 89951011 | band - other |
| BJA25G | band - resin band |
| BJA25G-LB | band - leather without buckle |
| BJA25G-BK4G | clasp - clasp |
| 07Y15DCM | hand - minute hand |
| 07Y21DGH | hand - hour hand |
| A130AS | others - push pin (for lb) |
| 2P200230XH | others - case |
| 2P200540XB14 | others - dial |
| 82332675 | others - bezel |
| 82802950 | others - case ring |
Caliber 2P20
