The Seiko 8620-5140 is a watch model based on the 8620 movement.
Parts List
| RE6N73LN00 | crystal |
| 35NA3NJ1 | crown |
| 35NA3NA1 | crown |
| 0H2750B01 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| RE6N73LN00 | crystal |
| 35NA3NJ1 | crown |
| 35NA3NA1 | crown |
| 0H2750B01 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
Caliber 8620
