The Seiko 7N01-6678 is a watch model based on the 7N01 movement.
Parts List
| 240N02GN00 | crystal |
| 240A03JN02 | crystal - crystal |
| 8M35B8SNW0 | crown - crown |
| 8M35B8SN | crown |
| 0H2200B01 | case back gasket - rotating bezel gasket |
| 0H2200B0 | case back gasket |
| 3BA125F1BNS | others - second hand |
| 0351890 | others - winding stem |
| 82819230 | others - case ring |
| 7N010 | others - machine code |
| 7N016678 | others - case back |
| 7N01667829A | others - case |
| 7N016911XS19 | others - dial |
| A150BS | others - push pin |
| 2AB100LBBDS | others - minute hand |
| 1AB070LCBDS | others - hour hand |
| AD006BA12 | others - crown gasket |