The Seiko 2C21-0170 is a watch model based on the 2C21 movement.
Parts List
| 190A02JN02 | crystal - crystal (inorganic) |
| 190NA5JN00 | crystal - crystal |
| 30NA7NA1 | crown - crown |
| 30NA7NS1 | crown - crown |
| 0H1550B01 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| PL29A | band - band |
| HK24B | band - band |
| PL28A | band - band |
| 3BA075F1BNG | others - second hand |
| 3BA075F1BNS | others - second hand |
| 07SC17NS | others - second hand |
| 07SC17NG | others - second hand |
| 08P91AGH | others - hour hand |
| 08P91AGM | others - minute hand |
| 08P91ASH | others - hour hand |
| 08P91ASM | others - minute hand |
| 08P91NGH | others - hour hand |
| 08P91NGM | others - minute hand |
| 1AX052AABAG | others - hour hand |
| 1AX052AABNG | others - hour hand |
| 2AX075ABBAG | others - minute hand |
| 0351225 | others - winding stem |
| 82706930 | others - case ring |
| 2C210760XB19 | others - dial |
| 2C210760XN19 | others - dial |
| 2C210760XS19 | others - dial |
| 2C210761XB19 | others - dial |
| 2C210761XN19 | others - dial |
| 2C210761XS19 | others - dial |
| 2C2110 | others - machine code |
| 2C211390XS19 | others - dial |
| A110AS | others - push pin |
| 2C2101702E | others - case |
| 2C21017025 | others - case |
| 190A02JN02 | crystal - crystal (inorganic) |
| 190NA5JN00 | crystal - crystal |
| 30NA7NA1 | crown - crown |
| 30NA7NS1 | crown - crown |
| 0H1550B01 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| PL29A | band - band |
| HK24B | band - band |
| PL28A | band - band |
| 3BA075F1BNG | others - second hand |
| 3BA075F1BNS | others - second hand |
| 07SC17NS | others - second hand |
| 07SC17NG | others - second hand |
| 08P91AGH | others - hour hand |
| 08P91AGM | others - minute hand |
| 08P91ASH | others - hour hand |
| 08P91ASM | others - minute hand |
| 08P91NGH | others - hour hand |
| 08P91NGM | others - minute hand |
| 1AX052AABAG | others - hour hand |
| 1AX052AABNG | others - hour hand |
| 2AX075ABBAG | others - minute hand |
| 0351225 | others - winding stem |
| 82706930 | others - case ring |
| 2C210760XB19 | others - dial |
| 2C210760XN19 | others - dial |
| 2C210760XS19 | others - dial |
| 2C210761XB19 | others - dial |
| 2C210761XN19 | others - dial |
| 2C210761XS19 | others - dial |
| 2C2110 | others - machine code |
| 2C211390XS19 | others - dial |
| A110AS | others - push pin |
| 2C2101702E | others - case |
| 2C21017025 | others - case |
Caliber 2C21
