1601 Help

[kon]

Hi I recently purchased a Datejust 1601 from a reputable seller who has been in business here in Los Angeles for a very long time. On the service record from 2021 it read 1601/4 as the model number. I keep looking for a similar dial but am having trouble finding it so I figured someone here may be able to help. I came across a "black lacquer" dial online and it seemed close but mine reads "Swiss Made". Possible that this is a service dial?