The Seiko 1E20-2B00 is a watch model based on the 1E20 movement.
Parts List
| 110A12JR02 | crystal - crystal |
| 6M35B6SNG1 | crown - crown |
| 6M35B6SNW1 | crown - crown |
| 0F100BA1S | case back gasket - case back gasket |
| 48C6KQ | band - band |
| 48C6JQ | band - band |
| 48C6JQ-LK3 | band - link |
| 48C6KQ-LK3 | band - link |
| 48C6KQ-BKI | clasp - buckle |
| 48C6KQ-PB2 | clasp - parts for buckle |
| 48C6JQ-BKI | clasp - buckle |
| 48C6JQ-PB2 | clasp - parts for buckle |
| 04V56NGH | others - hour hand |
| 02V06NSH | others - hour hand |
| 04V56NSH | others - hour hand |
| 04V56NGM | others - minute hand |
| 04VC2NSM | others - minute hand |
| 04V56NSM | others - minute hand |
| 81606439 | others - bracelet fixing pin |
| 82722960 | others - case ring |
| 81190055 | others - bracelet fixing pipe |
| 1E202B0075Z | others - case |
| 1E202B00 | others - case back |
| 1E205D48XE23 | others - dial |
| 1E205D48XS14 | others - dial |
| 1E205D48XZ23 | others - dial |
| 1E205D58XS13 | others - dial |
| 1E207 | others - machine code |
| 1E202B0079Z | others - case |
| DZ0040B01 | others - crown and stem gasket |
| 0351931 | others - winding stem |
Caliber 1E20
