The Seiko 8F56-0120 is a watch model based on the 8F56 movement.
Parts List
| 310P03S20A | crystal - crystal (sapphire) |
| 1E55C9SNA0 | crown - crown |
| FE328BAD2 | case back gasket - case back gasket |
| 86565100 | crystal gasket - plastic gasket for crystal |
| 86579500 | bezel gasket - plastic gasket for bezel |
| 30J7MG | band - band |
| 30J7MG-LK9 | band - link |
| H0GS12TA01G | clasp - clasp |
| 30J7MG-BKX | clasp - buckle |
| 30J7MG-PB4 | clasp - parts for buckle |
| 3AX130F6AEM | others - second hand |
| 1AB075LNBEE | others - hour hand |
| 2AB125L4BEE | others - minute hand |
| 1FX077FABEK | others - sub hand |
| 8F560120 | others - case back |
| 0878356 | others - date dial |
| 0884166 | others - holding ring for dial |
| 89924275 | others - back plate |
| 8F560088XB23 | others - dial |
| 8F5620AA | others - machine code |
| 82845890 | others - case ring |
| 81604059 | others - pin |
| 8F56012001D | others - case |
| 82316135 | others - bezel |
| 81190075 | others - bracelet fixing pipe |
| 81611629 | others - bracelet fixing pin |
| 0A0150B0A | others - crown and stem gasket |
| 89995390 | others - pusher spacer |