The Seiko 4N00-5139 is a watch model based on the 4N00 movement.
Parts List
| ESMN21AN00 | crystal |
| ESMN21AN | crystal |
| 35ML5NN1 | crown - crown |
| 35MM3NN1 | crown |
| 0H1600B01 | case back gasket - case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| 0H1600B0 | case back gasket |
| M5097G | band |
| M5097G-BK3G | clasp - clasp |
| 4N000310XB19 | others - dial |
| 4N000320XS19 | others - dial |
| 4N000330XG14 | others - dial |
| 4N005139 | others - case back |
| 4N00513925 | others - case |
| 4N0061 | others - machine code |
| 82841490 | others - case ring |
| B080AS | others - push pin |
| 0351155 | others - winding stem |
| 05Y05DGH | others - hour hand |
| 06Y07DGH | others - hour hand |
| 05Y09DGM | others - minute hand |
| 05Y13DGM | others - minute hand |