The Seiko 7N42-8189 is a watch model based on the 7N42 movement.
Parts List
| 290P02LN03 | crystal - crystal (inorganic) |
| 8K45A3SNW0 | crown - crown |
| 8K45A3SNG0 | crown - crown |
| FE308BAA1 | case back gasket - case back gasket |
| 86620310 | crystal gasket - plastic gasket for crystal |
| 86620315 | crystal gasket - plastic gasket for crystal |
| 86565321 | crystal gasket - plastic gasket for crystal |
| 86565320 | crystal gasket - plastic gasket for crystal |
| 86178450 | bezel gasket - plastic gasket for bezel |
| 86620830 | bezel gasket - plastic gasket for bezel |
| AD006BAA1 | pusher - button gasket |
| 4787J3 | band - metal band |
| 4GK1JJ | band - band |
| 4GJ1JJ | band - band |
| 4GJ2JJ | band - band |
| 4GJ4JJ | band - band |
| 4GJ3JJ | band - band |
| 3AX135F0ASX | others - second hand |
| 3AX135F0ASH | others - second hand |
| 2BH125FABSS | others - minute hand |
| 2BH125FABSG | others - minute hand |
| 1AH090FABSS | others - hour hand |
| 1AH090FABSG | others - hour hand |
| 3AX135F0AST | others - second hand |
| 3AX135F0ASZ | others - second hand |
| 3AX135F0ASV | others - second hand |
| 7N42818961C | others - case |
| 7N42818961B | others - case |
| 0351892 | others - winding stem |
| 82851310 | others - case ring |
| 7N42818961A | others - case |
| 82293879 | others - bezel |
| 7N428189 | others - case back |
| 0878580 | others - date dial |
| 7N423 | others - machine code |
| 7N428301XB13 | others - dial |
| 7N428301XE14 | others - dial |
| 7N428301XL13 | others - dial |
| 7N428301XR13 | others - dial |
| 7N428301XS14 | others - dial |
| A180BS | others - push pin |