The Seiko 8S21-5000 is a watch model based on the 8S21 movement.
Parts List
| REHN33JV01 | crystal |
| 35NJ1NA1 | crown |
| 0H3100B01 | case back gasket |
| 013100B01 | case back gasket |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |
| 89952130 | band - other |
| Z1379G | band - metal band |
| Z1379G-LKG | band - link |
| Z1379G-PB1 | clasp - parts for buckle/clasp |
| Z1379G-BK1G | clasp - clasp |
| 09PA1NGH | hand - hour hand |
| 3AA125F1ANG | others - second hand |
| 10P53NGM | others - minute hand |
| 82812350 | others - case ring |
| 8430831A | others - dial ring |
| 8S2110 | others - machine code |
| 8S215000 | others - case back |
| 8S21500025 | others - case |
| 8S215000XA19 | others - dial |
| A180BS | others - push pin |
| 10SC25T1 | others - second hand |
Other models with the same movement