The Seiko 8123-5140 is a watch model based on the 8123 movement.
Parts List
| SA5W84GN00 | crystal |
| 35M82NA1 | crown - crown |
| 35M82NS1 | crown - crown |
| 0A2930N01 | case back gasket - case back gasket |
| SA5W84GN00 | crystal |
| 35M82NA1 | crown - crown |
| 35M82NS1 | crown - crown |
| 0A2930N01 | case back gasket - case back gasket |
Caliber 8123
