The Seiko 2N20-0050 is a watch model based on the 2N20 movement.
Parts List
| 305W17FN01 | crystal |
| 30E27EG1 | crown |
| 30E27EH1 | crown |
| 0F250BAA3 | case back gasket - case back gasket |
| 0F250BAA5 | case back gasket - case back gasket |
| AC004BAA1 | case back gasket - crown and stem gasket |
| 86583210 | crystal gasket |
| 86583215 | crystal gasket |
| AL66A | band - metal band |
| 10M23CLH | others - hour hand |
| 0351109 | others - setting/winding stem |
| 2N200050Z1 | others - case |
| 2N200050Z2 | others - case |
| 2N200110XB19 | others - dial |
| 2N200110XS19 | others - dial |
| 2N2011 | others - machine code |
| 82813150 | others - case ring |
| 84308635 | others - dial ring |
| 84308636 | others - dial ring |
| A160BS | others - push pin |
| 10M23CLM | others - minute hand |
| 10M23DBH | others - hour hand |
| 10M23DBM | others - minute hand |
Caliber 2N20
Other models with the same movement
| 2N20-0010 |
| 2N20-0020 |
| 2N20-0040 |
| 2N20-0060 |
| 2N20-0070 |
| 2N20-0080 |
| 2N20-0090 |
| 2N20-0100 |
| 2N20-0110 |
| 2N20-0130 |
| 2N20-0140 |
| 2N20-5000 |
| 2N20-5010 |
| 2N20-5020 |
| 2N20-5030 |
| 2N20-5050 |
| 2N20-5060 |
| 2N20-5070 |
| 2N20-5080 |
| 2N20-5090 |
| 2N20-509A |