The Seiko Y491-4070 is a watch model based on the Y491 movement.
Parts List
ES8N17LM10 | crystal |
ES8N17LM40 | crystal |
ES8N17LM50 | crystal |
ES8N17LM60 | crystal |
Other models with the same movement
Y491-4000 |
Y491-4010 |
Y491-4060 |
Y491-4080 |
Y491-4090 |
Y491-4100 |
Y491-4110 |
Y491-4120 |
Y491-4190 |
Y491-4200 |
Y491-5000 |
Y491-500A |
Y491-500B |
Y491-500C |
Y491-5010 |