The Seiko 5A50-0139 is a watch model based on the 5A50 movement.
Parts List
| 215W18SV01 | crystal |
| 215W18SV | crystal |
| 30MJ2NA1 | crown - crown |
| 0A2000N01 | case back gasket |
| EZ0035B0 | case back gasket |
| BJA56S | band |
| A130AS | others - push pin (for lb) |
| 5A500139 | others - case back |
| 5A5001397E | others - case |
| 5A500380XN14 | others - dial |
| 5A509 | others - machine code |
| 82823960 | others - case ring |
| 0354881 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 09V28DGM | others - minute hand |
| 09V28DGH | others - hour hand |
Caliber 5A50
