The Seiko 2C21-0200 is a watch model based on the 2C21 movement.
Parts List
| 190A02JN02 | crystal - crystal (inorganic) |
| 190N97JN00 | crystal |
| 30N77NS1 | crown |
| 0H1550B01 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| HL35A | band - band |
| HL49A | band - band |
| MK31D | band - band |
| MK32D | band - band |
| 08PB7NBM | others - minute hand |
| 08SC29EB | others - second hand |
| 08P35NBH | others - hour hand |
| 08P35NBM | others - minute hand |
| 07P89NBH | others - hour hand |
| 07P89NBM | others - minute hand |
| 07SC43NS | others - second hand |
| 08PB7NBH | others - hour hand |
| 3BA075F1BNS | others - second hand |
| 3BA125F1BAB | others - second hand |
| 2C210200HE | others - case |
| 0351225 | others - winding stem |
| 82706930 | others - case ring |
| 2C210820XS19 | others - dial |
| 2C210821XS19 | others - dial |
| 2C2110 | others - machine code |
| 2C211520XS19 | others - dial |
| 2C211530XG19 | others - dial |
| A120AS | others - push pin |
Caliber 2C21
