The Seiko 2C21-0180 is a watch model based on the 2C21 movement.
Parts List
| 265N17LZ10 | crystal - crystal |
| 30N69N01 | crown - crown |
| 0H1850B01 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| GL25A | band - band |
| 10S31DGH | others - hour hand |
| 10S31DGM | others - minute hand |
| 10SS01EB | others - second hand |
| 0351226 | others - winding stem |
| 2C2101801A | others - case |
| 82719410 | others - case ring |
| 2C210770XB19 | others - dial |
| 2C2110 | others - machine code |
| A150BS | others - push pin |
Caliber 2C21
