The Seiko H023-0020 is a watch model based on the H023 movement.
Parts List
| 340P15S30A | crystal - crystal (sapphire) |
| 340P15S20A | crystal - crystal (sapphire) |
| 1Z50A1SNA0 | crown - crown(9h) |
| FE348BAD2 | case back gasket - case back gasket |
| 0E012BA11 | case back gasket - gasket |
| 86578941 | crystal gasket - plastic gasket for crystal |
| A35A21SMN0 | pusher - button |
| D1N5DG | band - band |
| D1N5DG-BK00 | clasp - clasp |
| 3AX110FJAEK | others - second hand |
| 1AX075GEBEJ | others - hour hand |
| 2BX115FHBEJ | others - minute hand |
| 83200273 | others - button spring clip |
| 81351630 | others - button spring |
| AD006BAD1 | others - crown and stem gasket |
| 82846230 | others - case ring |
| H023002001A | others - case |
| 89926410 | others - rotating bezel rack |
| 86015855 | others - rotating bezel |
| 0E340BA1S | others - rotating bezel gasket |
| H0230020 | others - case back |
| 83200019 | others - washer |
| 83220399 | others - ring |
| 84330235 | others - dial ring |
| 89926430 | others - drive wheel(inner) |
| 89926450 | others - drive wheel(outer) |
| D1N5DG-BKPP | others - spring bar for buckle/clasp |
| D1N5DG-LKPN | others - pin for link |
| H0230010X913 | others - dial |
| H02321 | others - machine code |
| S200BS | others - push pin |
Other models with the same movement