The Seiko 1E20-0AS0 is a watch model based on the 1E20 movement.
Parts List
| 130A08SB0B | crystal - crystal (sapphire) |
| 6M30Z2STWA | crown - crown (3h) |
| 6M35F7STS1 | crown - crown (3h) |
| 0F120BA1S | case back gasket - case back gasket |
| D3A8AG | band - metal band |
| D3A8CG | band - metal band |
| D3A8EG | band - metal band |
| DG29AW | band - metal band |
| D3A8AG-LK00 | band - link |
| D3A8CG-LK00 | band - link |
| D3A8EG-LK00 | band - link |
| D3A8EG-BK00 | clasp - clasp |
| D3A8CG-BK00 | clasp - clasp |
| D3A8AG-BK00 | clasp - clasp |
| 2EA040A1BDG | others - minute hand |
| 2EA052A3BDN | others - minute hand |
| 2EA052A3BDP | others - minute hand |
| 1CK037S0BDG | others - hour hand |
| 1CK037S0BDN | others - hour hand |
| 1CK037S0BDP | others - hour hand |
| 1E200AS0 | others - case back |
| 1E200AS001A | others - case |
| 1E200AS002A | others - case |
| 82845780 | others - case ring |
| D3A8AG-BKPN | others - pin for buckle/clasp |
| D3A8CG-BKPN | others - pin for buckle/clasp |
| D3A8AG-LKPN | others - pin for link |
| D3A8EG-BKPN | others - pin for buckle/clasp |
| D3A8CG-LKPN | others - pin for link |
| D3A8EG-LKPN | others - pin for link |
| T080BS | others - push pin |
| 0351931 | others - winding stem |
| DB004BAD1 | others - crown and stem gasket |
| 1E200AS0XS2Z | others - dial |
| 1E200AS0XZ13 | others - dial |
| 1E200AV0XS13 | others - dial |
| 1E200AW0XA15 | others - dial |
| 1E207 | others - machine code |
Caliber 1E20
