The Seiko 8C23-5070 is a watch model based on the 8C23 movement.
Parts List
| ES9W51LN00 | crystal |
| 40MH1NA1 | crown |
| 40MH1NS1 | crown - crown |
| 40MH1NN1 | crown - crown |
| 0F220BAA1 | case back gasket - case back gasket |
| EB055B01 | case back gasket |
| OF220BAA1 | case back gasket |
| 86571750 | crystal gasket - plastic gasket for crystal |
| Z1246G | band - metal band |
| Z1246G-LKG | band - link |
| Z1246S | band - metal band |
| Z1246G-PB1 | clasp - parts for buckle/clasp |
| Z1246G-BK1G | clasp - clasp |
| 11S27MGH | hand - hour hand |
| 11S27MGM | hand - minute hand |
| 11S27MKH | hand - hour hand |
| 11S27MKM | hand - minute hand |
| 11S27MSH | hand - hour hand |
| 11S27MSM | hand - minute hand |
| 3AA125F1A6S | others - second hand |
| 3AA125F1ANG | others - second hand |
| 82720490 | others - case ring |
| EB0055B01 | others - crown and stem gasket |
| 0354351 | others - winding stem |
| 0801140 | others - date dial |
| Z1246G-EPG | others - endpiece |
| 8C2312 | others - machine code |
| 8C23507061 | others - case |
| 8C23507075 | others - case |
| 8C23507LXB1L | others - dial |
| 8C23507LXG18 | others - dial |
| 8C23507LXS17 | others - dial |
| A200BS | others - push pin |
| 11SC17T1 | others - second hand |
| 11SC17T2 | others - second hand |