The Seiko 5Y91-600A is a watch model based on the 5Y91 movement.
Parts List
| 260N26JM03 | crystal |
| 260N26JM01 | crystal |
| 260N26JM02 | crystal |
| 35M98NA1 | crown |
| 35M98NS1 | crown |
| 0G0055B0 | case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0H2100B01 | case back gasket |
| B1648G | band |
| B1648S | band |
| B1648G-BK5G | clasp - clasp |
| 0354786 | others - winding stem |
| 5Y916000XB14 | others - dial |
| 5Y916000XN14 | others - dial |
| 5Y91600A | others - case back |
| 5Y91600A25 | others - case |
| 5Y91600A29 | others - case |
| 5Y919 | others - machine code |
| 82813660 | others - case ring |
| A140BS | others - push pin |
| 13SC04A2 | others - second hand |
| 09TC0DGM | others - minute hand |
| 09TC0DGH | others - hour hand |
Caliber 5Y91
