The Seiko 8L21-00B0 is a watch model based on the 8L21 movement.
Parts List
| 230P02S20A | crystal - crystal (sapphire) |
| 300P75S20A | crystal - crystal (inorganic) |
| 9K60E3SNS0 | crown - crown (3h) |
| FE318BAD2 | case back gasket - case back gasket |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |
| 86578720 | crystal gasket - crystal plastic gasket |
| 86622130 | crystal gasket - plastic gasket for crystal |
| 86583440 | bezel gasket - plastic gasket for bezel |
| WCX8AW | band - leather band |
| 3BX130FCBNS | others - second hand |
| 2FH125LGBDJ | others - minute hand |
| 1FH085LFBDJ | others - hour hand |
| 82319355 | others - bezel |
| 82847375 | others - case ring |
| 8L2100B0 | others - case back |
| 8L2100B001A | others - case |
| 0884165 | others - holding ring for dial |
| 8L2100B0XB19 | others - dial |
| S200BS | others - push pin |
| 0351440 | others - winding stem |
| 89926519 | others - casing spring |
Other models with the same movement