The Seiko Y148-7A20 is a watch model based on the Y148 movement.
Parts List
| 280W90LN01 | crystal |
| 45E58N01 | crown |
| FH2981B01 | case back gasket - case back gasket |
| 86177921 | crystal gasket - plastic gasket for crystal |
| 017AKL | band |
| 017AKK-LKG | band - link |
| 017AKL-LKG | band - link |
| A17AKK | band - metal band |
| A17AKK-LKG | band - link |
| A17AKL-LKG | band - link |
| A17AKL | band - metal band |
| 017AKK | band |
| 017AKK-PB1 | clasp - parts for buckle/clasp |
| 017AKL-BK1S | clasp - clasp |
| A17AKL-PB1 | clasp - parts for buckle/clasp |
| A17AKK-PB1 | clasp - parts for buckle/clasp |
| A17AKK-BK1G | clasp - clasp |
| 017AKL-PB1 | clasp - parts for buckle/clasp |
| A17AKL-BK1S | clasp - clasp |
| 017AKK-BK1G | clasp - clasp |
| 0801666 | others - date dial |
| 81355009 | others - click pin |
| 86315703 | others - rotating bezel |
| 86315704 | others - rotating bezel |
| A180CS | others - push pin |
| Y1481 | others - machine code |
| Y1487A1WXB14 | others - dial |
| Y1487A1WXG14 | others - dial |
| Y1487A20SG | others - case |
| Y1487A20SJ | others - case |
| 0354866 | others - winding stem |
| 82716220 | others - case ring |
| 0A0150B0A | others - crown and stem gasket |
| 13SC04A2 | others - second hand |
| 89995390 | others - pusher spacer |
| 11C60LGH | others - hour hand |
| 2AB120L0BLG | others - minute hand |
| 12CA0LGM | others - minute hand |