The Seiko 2Y01-5A20 is a watch model based on the 2Y01 movement.
Parts List
| SAGN02JM01 | crystal |
| SAGN02JM | crystal |
| 30M98NA1 | crown |
| 0H1610N01 | case back gasket |
| 0H1610N0 | case back gasket |
| Z5274S | band |
| Z5274G | band - metal band |
| Z5274H | band - metal band |
| Z5277K | band - metal band |
| Z5277K-BK5G | clasp - clasp |
| Z5274H-BK5G | clasp - clasp |
| Z5274G-BK5G | clasp - clasp |
| 07SC02NG | others - second hand |
| 05T02NGH | others - hour hand |
| 05T10NGM | others - minute hand |
| 0351236 | others - winding stem |
| 2Y010A78XS14 | others - dial |
| 2Y010B00XG14 | others - dial |
| 2Y010B00XG34 | others - dial |
| 2Y010B00XS14 | others - dial |
| 2Y010B10XB14 | others - dial |
| 2Y010B20XB14 | others - dial |
| 2Y010B20XG14 | others - dial |
| 2Y010J60XG14 | others - dial |
| 2Y015A20 | others - case back |
| 2Y015A2025 | others - case |
| 2Y015A202E | others - case |
| 2Y015A20HE | others - case |
| 2Y019 | others - machine code |
| 82733920 | others - case ring |
| B090BS | others - push pin |
| 05T06NGH | others - hour hand |
| DZ0041B01 | others - crown and stem gasket |
| 05T34NGM | others - minute hand |
| 05T16DAM | others - minute hand |
| 05T16DAH | others - hour hand |
Caliber 2Y01
