The Seiko 5Y23-5070 is a watch model based on the 5Y23 movement.
Parts List
| SA3W78LM01 | crystal |
| SA3W78LM | crystal |
| 35M82NA1 | crown - crown |
| 0A2600N01 | case back gasket - case back gasket |
| 86563101 | crystal gasket |
| B1620C | band |
| B1620L-LKG | band - link |
| B1620L | band |
| B1620L-PB1 | clasp - parts for buckle/clasp |
| B1620L-BK1S | clasp - clasp |
| 0351670 | others - winding stem |
| 0801719 | others - date dial |
| 5Y235048XN14 | others - dial |
| 5Y235070 | others - case back |
| 5Y23507061 | others - case |
| 5Y238 | others - machine code |
| 82813300 | others - case ring |
| A200BS | others - push pin |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 10T38NAM | others - minute hand |
| 10T38NAH | others - hour hand |