The Seiko 7N01-6631 is a watch model based on the 7N01 movement.
Parts List
| 205W35HN01 | crystal - crystal |
| 205W35HN | crystal |
| 1E45B3SNW0 | crown |
| 0H223BAA1 | case back gasket |
| 0H2000B01 | case back gasket - case back gasket |
| 0H2000B0 | case back gasket |
| 86586070 | crystal gasket |
| 4C00JB | band - band |
| 4B99JB | band - band |
| 4B98JB | band - band |
| 4B99JB-LKG | band - link |
| 4B99JB-BK2G | clasp - buckle |
| 4B99JB-PB1 | clasp - parts for buckle |
| 3AX075F3AAC | others - second hand |
| 3AX075F3AAE | others - second hand |
| 3AX075F3AAR | others - second hand |
| 2AH075FABAW | others - minute hand |
| 2AH075FABAE | others - minute hand |
| 1AX050FEBAW | others - hour hand |
| 1AX050FEBAE | others - hour hand |
| 0357890 | others - winding stem |
| 0351890 | others - winding stem |
| 7N0166316WJ | others - case |
| 8601385B | others - rotating bezel |
| 82816270 | others - case ring |
| 7N0166316WG | others - case |
| 8601385D | others - rotating bezel |
| 7N016631 | others - case back |
| 7N0166316WH | others - case |
| 8601385C | others - rotating bezel |
| 7N011041XE13 | others - dial |
| 7N011041XE23 | others - dial |
| 7N011041XE33 | others - dial |
| 7N013 | others - machine code |
| 81374110 | others - click spring |
| 84310998 | others - dial ring |
| A160CS | others - push pin |
| 0A0150B0A | others - crown and stem gasket |
| 89995390 | others - pusher spacer |