The Seiko 4S79-0A20 is a watch model based on the 4S79 movement.
Parts List
| 280P28SD01 | crystal |
| 280P28SB0B | crystal - crystal (sapphire) |
| 9M50B1SNA0 | crown - crown |
| 0F280BAAS | case back gasket - case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
| 86580520 | crystal gasket - plastic gasket for crystal |
| A059CZ | band - band |
| 3DA055ABBHG | others - small hand (9h) |
| 3DA040AABHG | others - small hand (6h) |
| 81190055 | others - bracelet fixing pipe |
| 81604829 | others - pin |
| 0351267 | others - winding stem |
| 81612149 | others - bracelet fixing pin |
| 82839761 | others - case ring |
| 4S790A209V | others - case |
| 1FB080ZHBHG | others - hour hand |
| 2FB120ZFBHG | others - minute hand |
Other models with the same movement