Tudor plexi "top hat" Submariner date

[alanc]

Hello all-

In a thread I started on the Vintage page, I asked about the Rolex 1680 sub. A couple of helpful folks noted I could get the same features in a plexi Tudor sub for less dinero.

Can anyone tell me the date ranges and reference number(s) for this watch, and any other helpful info, such as movement, quick-set, etc?

Thanks in advance