dura ace 7400 freewheel

[stessostesso]

I have a 6 speed dura ace uniglide freewheel and need a new chain. What would be a good match with my 7400 freewheel? I will be running it with a NR derailleur if it matters. Any help is much appreciated

 

[thecannibal]

A Regina would be a nice period-correct choice, but any 6 7 8 speed chain'll be fine.