The Seiko 5J21-0A50 is a watch model based on the 5J21 movement.
Parts List
| 280P34SB0A | crystal - crystal |
| 8K40B5SNS0 | crown - crown |
| FE298BAD2 | case back gasket - case back gasket |
| 86177921 | crystal gasket - plastic gasket for crystal |
| D1J3AG-LK00 | band - link |
| D1J3AG | band - band |
| D1J3CG | band - band |
| D1J3AG-BK00 | clasp - clasp |
| 1AG080L2BCA | others - hour hand |
| 1AG080L2BCC | others - hour hand |
| 1AG080L2BCD | others - hour hand |
| 2AG120L0BCA | others - minute hand |
| 2AG120L0BCC | others - minute hand |
| 2AG120L0BCD | others - minute hand |
| 81190055 | others - bracelet fixing pipe |
| 81610429 | others - bracelet fixing pin |
| 0351557 | others - winding stem |
| 82840420 | others - case ring |
| 5J210A5001A | others - case |
| 5J210A50 | others - case back |
| 5J210A5002A | others - case |
| 5J210A40XS13 | others - dial |
| 5J210A40XS24 | others - dial |
| 5J210A50XL13 | others - dial |
| 5J211 | others - machine code |
| D1J3AG-BKPP | others - spring bar for buckle/clasp |
| D1J3AG-LKPN | others - pin for link |
| AD006BAD1 | others - crown and stem gasket |
| 12ST06DA | others - second hand |
| 12ST06DC | others - second hand |
Other models with the same movement