The Seiko 7N21-0A00 is a watch model based on the 7N21 movement.
Parts List
| 335N52LN01 | crystal - crystal |
| 8Z55M0NNG1 | crown - crown |
| J0P8112K0 | band - metal band |
| D0H8BB | band - band |
| 2AC140A1BNB | others - minute hand |
| 1AD095S2BDB | others - hour hand |
| 3AX135F0ANB | others - second hand |
| 81350861 | others - button spring |
| 0351880 | others - winding stem |
| 81190055 | others - bracelet fixing pipe |
| 81606899 | others - bracelet fixing pin |
| 7N210A0026 | others - case |
| 82836820 | others - case ring |
| 7N210A00 | others - case back |
| 89916720 | others - case back spacer |
| 7N210A0026C | others - case |
| 81185109 | others - bracelet fixing pipe |
| 7N210A00XS19 | others - dial |
| 7N210A30X919 | others - dial |
| 7N210AB0XS19 | others - dial |
| 7N213 | others - machine code |
| 81335049 | others - open-close spring |
| 81871461 | others - case bow |
Other models with the same movement