The Seiko 5Y23-5A70 is a watch model based on the 5Y23 movement.
Parts List
| ESEW31LN01 | crystal |
| ESEW31LN | crystal |
| 45EC5NN1 | crown |
| ED014BA11 | case back gasket - gasket |
| FE278BAA1 | case back gasket |
| FD015BA11 | case back gasket - crown and stem gasket |
| ED014BA1 | case back gasket |
| 86591470 | crystal gasket |
| G1387L | band |
| G1387L-LKG | band - link |
| G1387L-PB1 | clasp - parts for buckle/clasp |
| G1387L-BK1S | clasp - clasp |
| 10SC27T1 | others - second hand |
| 3AA125F3ANG | others - second hand |
| 0351670 | others - winding stem |
| 0801722 | others - date dial |
| 5Y235A6LXN1Z | others - dial |
| 5Y235A70 | others - case back |
| 5Y235A7061 | others - case |
| 82821930 | others - case ring |
| 8430943A | others - dial ring |
| A180BS | others - push pin |
| 10P83LGM | others - minute hand |
| 10P83LGH | others - hour hand |