The Seiko 5Y30-5C50 is a watch model based on the 5Y30 movement.
Parts List
| SAJN03JN01 | crystal |
| SAJN03JN | crystal |
| 30N91NN1 | crown |
| 0H2700B01 | case back gasket - case back gasket |
| 0H2700B0 | case back gasket |
| DZ0065B0 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| Z1478C | band - metal band |
| Z1478C-LKG | band - link |
| Z1478G | band - metal band |
| Z1478C-BK4G | clasp - clasp |
| 1BH060A1BNG | others - hour hand |
| 2BH085A1BNG | others - minute hand |
| 81606439 | others - bracelet fixing pin |
| 81181459 | others - bracelet fixing pipe |
| 81607659 | others - bracelet fixing pin |
| 5Y305C5025 | others - case |
| 5Y305C502H | others - case |
| 5Y305F10XS14 | others - dial |
| 5Y305F20XS14 | others - dial |
| 82830410 | others - case ring |
| 2BC085A1BAA | others - minute hand |
| 08T45AGM | others - minute hand |
| 1BC060A1BAA | others - hour hand |
| SAJN03JN01 | crystal |
| SAJN03JN | crystal |
| 30N91NN1 | crown |
| 0H2700B01 | case back gasket - case back gasket |
| 0H2700B0 | case back gasket |
| DZ0065B0 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| Z1478C | band - metal band |
| Z1478C-LKG | band - link |
| Z1478G | band - metal band |
| Z1478C-BK4G | clasp - clasp |
| 1BH060A1BNG | others - hour hand |
| 2BH085A1BNG | others - minute hand |
| 81606439 | others - bracelet fixing pin |
| 81181459 | others - bracelet fixing pipe |
| 81607659 | others - bracelet fixing pin |
| 5Y305C5025 | others - case |
| 5Y305C502H | others - case |
| 5Y305F10XS14 | others - dial |
| 5Y305F20XS14 | others - dial |
| 82830410 | others - case ring |
| 2BC085A1BAA | others - minute hand |
| 08T45AGM | others - minute hand |
| 1BC060A1BAA | others - hour hand |