The Seiko Y799-4100 is a watch model based on the Y799 movement.
Parts List
| BA1N60AM01 | crystal - crystal (organic) |
| BA1N60AM02 | crystal - crystal (organic) |
| BA1N60AM03 | crystal - crystal (organic) |
| 0A2550B01 | case back gasket |
| EG0115B01 | case back gasket - button gasket |
| GL74B | band - leather band |
| QA91A | band - metal band |
| A180BS | others - push pin |