The Seiko 2P21-5140 is a watch model based on the 2P21 movement.
Parts List
| ET2N33JN01 | crystal |
| 30ND3NA1 | crown - crown |
| 30N63NA1 | crown - crown |
| 0G1600B01 | case back gasket - case back gasket |
| 0G1650B01 | case back gasket - case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| WEJ05G | band - leather band |
| 05T25DGM | hand - minute hand |
| 2BA052A1BDG | hand - minute hand |
| 3BA075F1BNG | others - second hand |
| 1BA032A1BNG | others - hour hand |
| 82810770 | others - case ring |
| T090AS | others - push pin |
| 2P210380XS14 | others - dial |
| 2P215140 | others - case back |
| 2P21514025 | others - case |
| 2P219 | others - machine code |
| 07SC04NG | others - second hand |
Caliber 2P21
