Really.............Hmmm........every MBW I've owned has been a vintage model.........guess I've been under a rock.....you still haven't narrowed it down. What model Modern MBW do you have...........GMT, Date, No-Date, Yachtmaster, Daytona, Air-King, Turn-O-Graph, Explorer, Explorer II, Date, Date-Just.........ooops, I see you clarified it with "modern Sub" I guess it's either a Date, or No date sub.
In that case, I think it's worth $50.00
Good luck selling it to "Most" of the people here.