The Seiko 1E20-0AH0 is a watch model based on the 1E20 movement.
Parts List
| RE7A34SB0A | crystal - crystal (sapphire) |
| 6M30E9SNS0 | crown - crown |
| 6M30E9SNG2 | crown - crown |
| 6M30Z2SNGA | crown - crown |
| 0F140BA1S | case back gasket - case back gasket |
| D203AG | band - band |
| D204AG | band - band |
| DEV2BW | band - band |
| DEW1BW | band - band |
| D203AG-LK00 | band - link |
| D204AG-LK00 | band - link |
| D203AG-BK00 | clasp - clasp |
| D204AG-BK00 | clasp - clasp |
| DEV2BW-BJ00 | clasp - buckle |
| 1CH030A2BAP | others - hour hand |
| 2EH045A0BAP | others - minute hand |
| 1CH030L2BDG | others - hour hand |
| 2EH045L0BDG | others - minute hand |
| 1CH030L2BDN | others - hour hand |
| 2EH045L0BDN | others - minute hand |
| 82844300 | others - case ring |
| 1E200AH0 | others - case back |
| 0351931 | others - winding stem |
| DB004BAD1 | others - crown and stem gasket |
| 1E200AH003A | others - case |
| 1E200AH002A | others - case |
| 1E200AH001A | others - case |
| 1E200AG0XS15 | others - dial |
| 1E200AH0XB15 | others - dial |
| 1E200AH0XS15 | others - dial |
| 1E200AJ0XA15 | others - dial |
| 1E203 | others - machine code |
| D204AG-LKPC | others - pipe for link |
| D204AG-LKPN | others - pin for link |
| D203AG-LKPC | others - pipe for link |
| D203AG-LKPN | others - pin for link |
| DEV2BW-EP00 | others - endpiece |
| S130BS | others - push pin |
Caliber 1E20
