The Seiko 2633-5020 is a watch model based on the 2633 movement.
Parts List
| BA1N47KN00 | crystal |
| 35R05NS1 | crown |
| 35R05NA1 | crown |
| 013120B01 | case back gasket |
Caliber 2633
Other models with the same movement
| 2633-5000 |
| 2633-5010 |
| 2633-5019 |
| 2633-5029 |
| 2633-5030 |
| 2633-5040 |
| 2633-5050 |
| 2633-5059 |
| 2633-7000 |
| 2633-7009 |
| 2633-7010 |
| 2633-7020 |
| 2633-7030 |
| 2633-7039 |