The Seiko Y520-5040 is a watch model based on the Y520 movement.
Parts List
| REAN70LN01 | crystal - crystal (inorganic) |
| 25E50NF1 | crown |
| 0H1400B01 | case back gasket - case back gasket |
| 560BA | band - metal band |
| 562BA | band - metal band |
| 564BA | band - metal band |
| 564BA-BK3G | clasp - clasp |
| 562BA-BK3G | clasp - clasp |
| 560BA-BK7G | clasp - clasp |
| 560BA-PB1 | clasp - parts for buckle/clasp |
| 0351930 | others - winding stem |
| 82726560 | others - case ring |
| Y5200 | others - machine code |
| Y5200118XG14 | others - dial |
| Y5200128XG14 | others - dial |
| Y5200138XG14 | others - dial |
| Y52050402S | others - case |
| 05V44NGM | others - minute hand |
| 05V08N1H | others - hour hand |
| 04V48DGM | others - minute hand |
| 04V02DAH | others - hour hand |