The original marvin was an old outfit that went under during the quartz crisis period. So the new ones are just a name bought from whoever has the rights for it. There is no connection between the old and the new.
I'd guess if it's a Swiss made piece or has a Seiko or Citizen mvmt it's a quality piece. otherwise not.
I'd guess if it's a Swiss made piece or has a Seiko or Citizen mvmt it's a quality piece. otherwise not.