The Seiko 5Y89-0A40 is a watch model based on the 5Y89 movement.
Parts List
| 240P02SN02 | crystal - crystal (sapphire) |
| 8K40A6SNW1 | crown - crown |
| 0F250NA1S | case back gasket |
| 86575520 | crystal gasket - crystal plastic gasket |
| 86574080 | bezel gasket - plastic gasket for bezel |
| D0P1AG | band - band |
| 1AB070LNBAN | others - hour hand |
| 2AB100LNBAN | others - minute hand |
| 3BA025FABNS | others - sub hand |
| 3BA030F0BNS | others - small hand (9h) |
| 3BA125F1BNS | others - second hand |
| 0354530 | others - winding stem |
| 82727120 | others - case ring |
| 5Y890A4061 | others - case |
| 82290869 | others - bezel |
| 5Y890A40 | others - case back |
| 5Y890A30XB13 | others - dial |
| 5Y891 | others - machine code |
| 84326245 | others - dial ring |
| A170BS | others - push pin |
| 0Z0060B01 | others - crown and stem gasket |