The Seiko 1F20-0AY0 is a watch model based on the 1F20 movement.
Parts List
| RE7A36SB0A | crystal - crystal |
| 6M35E2SNWC | crown - crown |
| 6M35E2SNWA | crown - crown |
| 6M35E2SNGA | crown - crown |
| 0F180BA1S | case back gasket - case back gasket |
| DET5AW | band - band |
| DEX2AW | band - band |
| DEX1BW | band - band |
| DET5AW-BK00 | clasp - clasp |
| 1CH035L0BDG | others - hour hand |
| 2CH050L0BDG | others - minute hand |
| 1CH035L0BCW | others - hour hand |
| 2CH050L0BCW | others - minute hand |
| 1CH035L0BDN | others - hour hand |
| 2CH050L0BDN | others - minute hand |
| 82844320 | others - case ring |
| 1F200AY001A | others - case |
| 0351807 | others - winding stem |
| DB004BAD1 | others - crown and stem gasket |
| 1F200AY003A | others - case |
| 1F200AY0 | others - case back |
| 1F200AY002A | others - case |
| 1F200BG0XA13 | others - dial |
| 1F200BN0XA13 | others - dial |
| 1F200BN0XA24 | others - dial |
| 1F203 | others - machine code |
| S180CS | others - push pin |
Caliber 1F20
