The Seiko 2Y00-0B20 is a watch model based on the 2Y00 movement.
Parts List
| 165N02GN00 | crystal |
| SAGN32JN01 | crystal |
| 165N02GN | crystal |
| SAGN32JN | crystal |
| 30M98NA1 | crown |
| 0H1500N01 | case back gasket - case back gasket |
| 0H1500N0 | case back gasket |
| 0H1610N01 | case back gasket |
| 0H1610N0 | case back gasket |
| G5112C | band - other band |
| G5112C-LKG | band - link |
| G5112G | band - other band |
| G5112G-LKG | band - link |
| G5112G-BK4G | clasp - clasp |
| G5112C-BK4S | clasp - clasp |
| 07Y32GGM | hand - minute hand |
| 2Y000B20 | others - case back |
| 2Y000B2025 | others - case |
| 2Y000B202N | others - case |
| 2Y001D00XS19 | others - dial |
| 2Y001D10XG14 | others - dial |
| 2Y001D10XS14 | others - dial |
| 2Y009 | others - machine code |
| 0351236 | others - winding stem |
| 06Y32DGM | others - minute hand |
| 81180229 | others - bracelet fixing pipe |
| 82801360 | others - case ring |
| 81604169 | others - bracelet fixing pin |
| 06Y32NGH | others - hour hand |
| DZ0041B01 | others - crown and stem gasket |
| 1CD052A0BAA | others - hour hand |
| 07Y32FGH | others - hour hand |
Caliber 2Y00
