The Seiko Y136-5A20 is a watch model based on the Y136 movement.
Parts List
| RE2A16LN02 | crystal - crystal |
| 30MR2NS1 | crown |
| 0F230NA1S | case back gasket - case back gasket |
| WH22AZ | band - band |
| 3AA125FMANA | others - second hand |
| 1AH047A1BAC | others - hour hand |
| 2AH070A1BAC | others - minute hand |
| 0354786 | others - winding stem |
| Y1365A2079 | others - case |
| 82739000 | others - case ring |
| A160BS | others - push pin |
| AD006BA12 | others - crown gasket |