The Seiko 5Y91-6020 is a watch model based on the 5Y91 movement.
Parts List
| 260N24JM01 | crystal |
| 35M98NA1 | crown |
| 0G0055B0 | case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0H2395B01 | case back gasket |
| WMJ17G | band - leather band |
| 0354786 | others - winding stem |
| 5Y916020 | others - case back |
| 5Y91602025 | others - case |
| 5Y916030XG14 | others - dial |
| 5Y916130XG14 | others - dial |
| 5Y919 | others - machine code |
| 82820880 | others - case ring |
| A160BS | others - push pin |
| 13SC04A2 | others - second hand |
| 08T10DAM | others - minute hand |
| 09T38DAM | others - minute hand |
| 09T32DAH | others - hour hand |
| 08T10DAH | others - hour hand |
Caliber 5Y91
