The Seiko 7N00-5B90 is a watch model based on the 7N00 movement.
Parts List
| RE2W40JN01 | crystal |
| RE2W40JN | crystal |
| 8M30A0NNG2 | crown - crown |
| 8M30A0NN | crown |
| 0F260NA1S | case back gasket - case back gasket |
| 0F260NA1 | case back gasket |
| 4260YB-LKG | band - link |
| 4260YB | band - band |
| 4260YB-BK4G | clasp - buckle |
| 2AE065LMBDG | others - minute hand |
| 1AE040LMBDG | others - hour hand |
| 81604259 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 7N005B9075Z | others - case |
| 82830240 | others - case ring |
| 7N005B90 | others - case back |
| 7N000 | others - machine code |
| 7N005D08XB15 | others - dial |
| 0351890 | others - winding stem |
| AD006BA12 | others - crown gasket |