The Seiko 2P20-027B is a watch model based on the 2P20 movement.
Parts List
| 180N85JN00 | crystal |
| 25N09NA1 | crown |
| 0G1700B01 | case back gasket |
| 0G1750B01 | case back gasket |
| DK16C | band - leather band |
| A130AS | others - push pin (for lb) |
| 2P20027B25 | others - case |
| 2P201210XS24 | others - dial |
| 82803770 | others - case ring |
| DZ0040B01 | others - crown and stem gasket |
| 0351236 | others - winding stem |
| 07Y27DGH | others - hour hand |
| 07Y27DGM | others - minute hand |
Caliber 2P20
