The Seiko 5P30-5B50 is a watch model based on the 5P30 movement.
Parts List
| SAEN04JN01 | crystal |
| SAEN04JN | crystal |
| 30MA6NA1 | crown - crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0G0055B0 | case back gasket |
| 0H2300N01 | case back gasket |
| B1441D | band - metal band |
| B1441D-LKG | band - link |
| B1441G | band - metal band |
| B1441G-LKG | band - link |
| B1441G-BK4G | clasp - clasp |
| B1441D-BK4G | clasp - clasp |
| A130AS | others - push pin (for lb) |
| 5P305B50 | others - case back |
| 5P305B5025 | others - case |
| 5P305B502N | others - case |
| 5P305C10XB14 | others - dial |
| 5P305C10XG14 | others - dial |
| 5P305C60XB15 | others - dial |
| 5P309 | others - machine code |
| 82801860 | others - case ring |
| 0351670 | others - winding stem |
| 08T32DGM | others - minute hand |
| 08T32DGH | others - hour hand |
| 09T32DGH | others - hour hand |
| 09T32DGM | others - minute hand |