The Seiko 9550-5139 is a watch model based on the 9550 movement.
Parts List
| 25M04NS1 | crown |
| 25M04NA1 | crown - crown |
| 0Z2801N01 | case back gasket |
Caliber 9550
Seiko 9550-5139 Watch Guide
The Seiko 9550-5139 is a watch model based on the 9550 movement.
| 25M04NS1 | crown |
| 25M04NA1 | crown - crown |
| 0Z2801N01 | case back gasket |