The Seiko H021-8018 is a watch model based on the H021 movement.
Parts List
| 290P03HN03 | crystal - crystal |
| FE318BA12 | case back gasket - case back gasket |
| 86580830 | crystal gasket - plastic gasket for crystal |
| 86600570 | bezel gasket - plastic gasket for bezel |
| 80637431 | pusher - button |
| 80603731 | pusher |
| 4138YZ | band - band |
| 4138YZ-LKG | band - link |
| 4138YZ-BK1G | clasp - buckle |
| 4138YZ-PB1 | clasp - parts for buckle |
| 3AX130F0ALV | others - second hand |
| 2BB125L8BLG | others - minute hand |
| A100BS | others - push pin (for mb) |
| 82825890 | others - case ring |
| 82835630 | others - case ring |
| H021801875A | others - case |
| 82290191 | others - bezel |
| H0218018 | others - case back |
| 84311015 | others - dial ring |
| H02125 | others - machine code |
| H021800MXB24 | others - dial |
| 83200273 | others - button spring clip |
| 81351630 | others - button spring |
| AD006BA11 | others - crown and stem gasket |
| AD006BA1 | others - crown gasket |
| 1AB080L4BLG | others - hour hand |
Other models with the same movement