The Seiko 2N20-5050 is a watch model based on the 2N20 movement.
Parts List
| ET3N31HV01 | crystal |
| ET3N31HV02 | crystal |
| 25M35NA1 | crown |
| 0G1820B01 | case back gasket |
| Z5224H | band - metal band |
| Z5224L-LKG | band - link |
| Z5224H-LKG | band - link |
| Z5224L | band - metal band |
| Z5224L-BK4G | clasp - clasp |
| Z5224H-BK4S | clasp - clasp |
| 06M17D1M | hand - minute hand |
| 06M17DCM | hand - minute hand |
| 06M27DCH | hand - hour hand |
| 06M27DGH | hand - hour hand |
| 2N200140XN14 | others - dial |
| 2N200140XS14 | others - dial |
| 2N2011 | others - machine code |
| 2N205050 | others - case back |
| 2N20505025 | others - case |
| 2N20505048 | others - case |
| 82811830 | others - case ring |
| A100AS | others - push pin |
| DZ0040B01 | others - crown and stem gasket |
Caliber 2N20
Other models with the same movement
| 2N20-0010 |
| 2N20-0020 |
| 2N20-0040 |
| 2N20-0050 |
| 2N20-0060 |
| 2N20-0070 |
| 2N20-0080 |
| 2N20-0090 |
| 2N20-0100 |
| 2N20-0110 |
| 2N20-0130 |
| 2N20-0140 |
| 2N20-5000 |
| 2N20-5010 |
| 2N20-5020 |
| 2N20-5030 |
| 2N20-5060 |
| 2N20-5070 |
| 2N20-5080 |
| 2N20-5090 |
| 2N20-509A |