Has anyone come across this model of the Zenit 3m?

I have a 1962 Zenit 3m with a navy body instead of black and red Cyrillic lettering on the front and the serial number and KMZ logo also in red.

Not sure if this was a special edition or a custom job.

Any help would be appreciated!

Images are in the imgur link
https://imgur.com/a/GUB0eca

Hi Alec, it's just painted in by an owner.. very common to see.

Hello and welcome to the forum, Alec.