The Seiko Y148-8120 is a watch model based on the Y148 movement.
Parts List
| 290WA0LN01 | crystal |
| 45E64N01 | crown |
| 45E64NS1 | crown |
| 45E58NS1 | crown |
| FH3081B01 | case back gasket |
| 0Z3314B02 | case back gasket - rotating bezel gasket |
| 86565321 | crystal gasket - plastic gasket for crystal |
| 004BC | band |
| 003BC | band |
| 004BC-LKG | band - link |
| A03BC | band - metal band |
| A04BC | band - metal band |
| 004BC-PB1 | clasp - parts for buckle/clasp |
| 004BC-BK1S | clasp - clasp |
| 0801666 | others - date dial |
| 86315264 | others - rotating bezel |
| A180CS | others - push pin |
| Y1481 | others - machine code |
| Y148812061 | others - case |
| Y1488120SG | others - case |
| Y148815WXB19 | others - dial |
| Y148815WXL19 | others - dial |
| 82727680 | others - case ring |
| 0354866 | others - winding stem |
| 0A0150B0A | others - crown and stem gasket |
| 13SC06LS | others - second hand |
| 13SC06LA | others - second hand |
| 89995390 | others - pusher spacer |
| 11C52LSM | others - minute hand |
| 2AX115SMBLG | others - minute hand |
| 11C52LGM | others - minute hand |
| 11C52LSH | others - hour hand |
| 11C52LGH | others - hour hand |