The Seiko 2P20-0D90 is a watch model based on the 2P20 movement.
Parts List
| 210W18JN01 | crystal |
| 32M16EK1 | crown |
| 0A1900N01 | case back gasket - case back gasket |
| 0A1900N0 | case back gasket |
| 86574681 | crystal gasket - plastic gasket for crystal |
| B5430S | band - metal band |
| B5430S-LKS | band - link |
| B5430S-BK4S | clasp - clasp |
| 08Y02NBM | hand - minute hand |
| 08Y04NBH | hand - hour hand |
| 2P200D90 | others - case back |
| 2P200D9061 | others - case |
| 2P201E50XS19 | others - dial |
| 2P209 | others - machine code |
| A100AS | others - push pin |
| 82800580 | others - case ring |
| 0351236 | others - winding stem |
| EZ0035B0A | others - crown and stem gasket |
| EZ0035B01 | others - crown and stem gasket |
Caliber 2P20
