The Seiko 4N20-0270 is a watch model based on the 4N20 movement.
Parts List
| 180A05SN02 | crystal |
| 25M25NS5 | crown - crown |
| 0F150BAA5 | case back gasket - case back gasket |
| MK51E | band - leather band |
| DZ0040B01 | others - crown and stem gasket |
| 0351156 | others - winding stem |
| 07Y67JCH | others - hour hand |
| 82832995 | others - case ring |
| 4N200270 | others - case back |
| 4N2002709TA | others - case |
| 4N200570XS14 | others - dial |
| 4N2061 | others - machine code |
| 82361155 | others - bezel |
| A120AS | others - push pin |
| 07Y67JGM | others - minute hand |
| 1CC050AABNG | others - hour hand |
| 2CC075AABDG | others - minute hand |