The Seiko 2E20-7220 is a watch model based on the 2E20 movement.
Parts List
| RE3A27SN02 | crystal - crystal |
| 30M81NS6 | crown - crown |
| 30M81DA5 | crown - crown |
| 0F140BA1S | case back gasket - case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| W452AB | band - band |
| W041BB | band - band |
| 2EA040A3BNS | others - minute hand |
| 1CA027A3BNG | others - hour hand |
| 2E202780XA14 | others - dial |
| 2E2062 | others - machine code |
| 2E20722076A | others - case |
| 82871550 | others - case ring |
| 2E207220 | others - case back |
| 2E2072207E | others - case |
| 0351205 | others - winding stem |
| 1CA027A3BNS | others - hour hand |
| 2EA040A3BNG | others - minute hand |
Caliber 2E20
