The Seiko 2P20-0A5A is a watch model based on the 2P20 movement.
Parts List
| 175W04JN01 | crystal |
| 30MA2NA1 | crown - crown |
| 0A1800N01 | case back gasket |
| 86573940 | crystal gasket - plastic gasket for crystal |
| BHZ19G | band - resin band |
| BHZ19G-LB | band - leather without buckle |
| BHZ19G-BK4G | clasp - clasp |
| 06Y08DGM | hand - minute hand |
| 07Y06DGH | hand - hour hand |
| 2P200A5AT7 | others - case |
| 2P200C90X994 | others - dial |
| 2P209 | others - machine code |
| EZ0035B0A | others - crown and stem gasket |
| 0351236 | others - winding stem |
| A120AS | others - push pin |
| 82734640 | others - case ring |
| EZ0035B01 | others - crown and stem gasket |
Caliber 2P20
