The Seiko 1230-5839 is a watch model based on the 1230 movement.
Parts List
| REGN13SV01 | crystal |
| REGN13SV | crystal |
| 25N07DA1 | crown |
| 0F200NA11 | case back gasket |
| 0F200NA1 | case back gasket |
| M1025G | band |
| M1025G-PB3 | clasp - parts for buckle/clasp |
| M1025G-BK6G | clasp - clasp |
| 08L01JGM | hand - minute hand |
| 12301020XS14 | others - dial |
| 12305839 | others - case back |
| 1230583925 | others - case |
| 123090 | others - machine code |
| 82802450 | others - case ring |
| M1025G-EP2 | others - endpiece |
| DZ0040B01 | others - crown and stem gasket |
| 0351117 | others - winding stem |
| 08L01DGH | others - hour hand |
| 08L01DGM | others - minute hand |
| 1CE050LABDG | others - hour hand |
Caliber 1230
