The Seiko Y143-0A20 is a watch model based on the Y143 movement.
Parts List
| 290W47LN00 | crystal - crystal |
| 35MB7N01 | crown - crown |
| 35MB7NS1 | crown - crown |
| FE298BA11 | case back gasket - case back gasket |
| 86570710 | crystal gasket - plastic gasket for crystal |
| 012MU | band - band |
| 011MU | band - band |
| 11SC23T1 | others - second hand |
| 11SC23TB | others - second hand |
| 11C84QGM | others - minute hand |
| 11C84BGM | others - minute hand |
| 11C84QSM | others - minute hand |
| 11C84QGH | others - hour hand |
| 11C84BGH | others - hour hand |
| 11C84QSH | others - hour hand |
| 82718910 | others - case ring |
| Y1430A2061A | others - case |
| Y1430A20SJA | others - case |
| A180BS | others - push pin |
| DH004BA11 | others - crown and stem gasket |
| 0354866 | others - winding stem |
| 3AX110F3AL3 | others - second hand |
| 3AX110F3ALG | others - second hand |