The Seiko 5T12-7A20 is a watch model based on the 5T12 movement.
Parts List
| 310W78HN01 | crystal |
| 310W78HN | crystal |
| 40M92NA1 | crown |
| 0351580 | crown - winding stem |
| 40M82NA1 | crown - crown |
| FH3081B01 | case back gasket |
| EG0060B0 | case back gasket |
| 86581460 | crystal gasket |
| 86581461 | crystal gasket |
| 86179271 | bezel gasket - plastic gasket for bezel |
| 80602781 | pusher |
| ZRA31G | band |
| 04EB8AG | hand - small hand (6h) |
| 0866599 | others - holding ring for dial |
| 0878527 | others - date dial |
| 5T123 | others - machine code |
| 5T127A20 | others - case back |
| 5T127A2075 | others - case |
| 5T127A20XS19 | others - dial |
| 82280141 | others - bezel |
| 84322343 | others - dial ring |
| 86510089 | others - conducting plate |
| A200BS | others - push pin |
| 81400709 | others - button spring clip |
| 81350540 | others - button spring |
| EG0060B01 | others - button gasket |
| 12T12A1M | others - minute hand |
| 0Z0060B01 | others - crown and stem gasket |
| 12SC38TG | others - second hand |
| 12T12A1H | others - hour hand |
| 04Y28AGH | others - hour hand |
Other models with the same movement