The Seiko 1F20-0J49 is a watch model based on the 1F20 movement.
Parts List
| ESMN28SR02 | crystal |
| ESMN28SR | crystal |
| 30ML2NH1 | crown |
| 0H1400N01 | case back gasket - case back gasket |
| 0H1400N0 | case back gasket |
| 0D200NA12 | bezel gasket |
| ZJA59G | band |
| ZJA59G-BK1G | clasp - clasp |
| ZJA59G-EP3 | others - endpiece |
| 0351807 | others - winding stem |
| 82821420 | others - case ring |
| 81502469 | others - case back screw |
| 1F200J49 | others - case back |
| 1F200J49BT | others - case |
| 1F202D00XS14 | others - dial |
| 1F205 | others - machine code |
| 82320863 | others - bezel |
| 2CF085A0BNG | others - minute hand |
| 1CF060A0BNG | others - hour hand |
Caliber 1F20
