The Seiko Y150-5G40 is a watch model based on the Y150 movement.
Parts List
| RE1A34JN02 | crystal - crystal |
| 25M24NS1 | crown |
| 25M24NF1 | crown |
| 0E140NA1S | case back gasket - case back gasket |
| WD31AW | band - leather band |
| WD32AW | band - leather band |
| WR13AW | band - band |
| WR14AW | band - band |
| WD29BW | band - band |
| WD30AW | band - band |
| 1CA030F6BNB | others - hour hand (upper) |
| 2CA042F0BNB | others - minute hand |
| 1CA030F6BNG | others - hour hand |
| 1CA030F6BNS | others - hour hand (upper) |
| 2CA042F0BNG | others - minute hand (lower) |
| 2CA042F0BNS | others - minute hand (lower) |
| 0351807 | others - winding stem |
| 82728760 | others - case ring |
| Y1505G407S | others - case |
| Y1505G4079 | others - case |
| DZ0041B01 | others - crown and stem gasket |