The Seiko 1M20-0A70 is a watch model based on the 1M20 movement.
Parts List
| 8M35A4TTWA | crown - crown |
| 0F200BA1S | case back gasket - case back gasket |
| W215AG | band - band |
| W216DG | band - band |
| W217DG | band - band |
| W215AG-BK00 | clasp - clasp |
| 1CE047L0BDG | others - hour hand |
| 1CF055L1BCH | others - hour hand |
| 1CF055L1BDG | others - hour hand |
| 2CE070L0BDG | others - minute hand |
| 2CF080L1BCH | others - minute hand |
| 2CF080L1BDG | others - minute hand |
| 0351555 | others - winding stem |
| 82839200 | others - case ring |
| 1M200A7097 | others - case |
| 81181879 | others - bracelet fixing pipe |
| 81603209 | others - bracelet fixing pin |
| 1M200A70 | others - case back |
| 1M200A7097A | others - case |
| 1M200A7097B | others - case |
| 1M200B50XA14 | others - dial |
| 1M200B60XS14 | others - dial |
| 1M200B70XN13 | others - dial |
| 1M201 | others - machine code |
| AD006BA12 | others - crown gasket |
Caliber 1M20
Other models with the same movement
| 1M20-0A10 |
| 1M20-0A20 |
| 1M20-0A30 |
| 1M20-0A40 |
| 1M20-0A50 |
| 1M20-0A60 |
| 1M20-5A00 |
| 1M20-5A10 |
| 1M20-5A20 |
| 1M20-5A30 |
| 1M20-5A40 |
| 1M20-5A50 |
| 1M20-5A60 |
| 1M20-5A70 |
| 1M20-5A80 |
| 1M20-5A90 |
| 1M20-5B00 |