The Seiko 1230-5859 is a watch model based on the 1230 movement.
Parts List
| REGN15SV | crystal |
| REGN15SV01 | crystal |
| REGN15SV02 | crystal |
| 25N07DA1 | crown |
| 0F205NA1 | case back gasket |
| 0F205NA11 | case back gasket |
| DZ0040B0 | case back gasket |
| Z1305C | band - metal band |
| Z1305C-LKG | band - link |
| Z1305G | band - metal band |
| Z1305G-LKG | band - link |
| Z1305G-PB1 | clasp - parts for buckle/clasp |
| Z1305G-BK4G | clasp - clasp |
| Z1305C-PB1 | clasp - parts for buckle/clasp |
| Z1305C-BK4G | clasp - clasp |
| 08L01JGM | hand - minute hand |
| 12301050XG14 | others - dial |
| 12301050XN14 | others - dial |
| 12305859 | others - case back |
| 1230585925 | others - case |
| 12305859EA | others - case |
| 123090 | others - machine code |
| 82802490 | others - case ring |
| DZ0040B01 | others - crown and stem gasket |
| 81606439 | others - bracelet fixing pin |
| 81181459 | others - bracelet fixing pipe |
| 08L01DGH | others - hour hand |
| 08L01DGM | others - minute hand |
| 1CE050LABDG | others - hour hand |
Caliber 1230
