The Seiko 1E20-5149 is a watch model based on the 1E20 movement.
Parts List
| K01A75J20A | crystal - crystal |
| K01A75J20B | crystal - crystal |
| K01A75J2 | crystal |
| KO1A75J20A | crystal |
| 6M25Z1NNGB | crown |
| 6M25Z1NN | crown |
| 0H1300B01 | case back gasket |
| 0H1300B0 | case back gasket |
| 2043YZ | band - band |
| 2043YZ-LKG | band - link |
| 2043YZ-BK4G | clasp - buckle |
| 2043YZ-PB1 | clasp - parts for buckle |
| 2EE037LABDG | others - minute hand |
| 1CE025L0BDG | others - hour hand |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 1E20514926A | others - case |
| 82872710 | others - case ring |
| 1E205149 | others - case back |
| 1E20514926B | others - case |
| 1E205180XG14 | others - dial |
| 1E205180XZ14 | others - dial |
| 1E208 | others - machine code |
| 0354931 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 0351931 | others - winding stem |
Caliber 1E20
