Okay, obviously I'm going to ignore the single red 1665 sea-dweller here as it's so rare there's no hope of ever pulling it off as a gen anyway.
Also, I agree, it's impossible to discuss what could be installed on the various models today as any model could have any dial or crystal replaced. So, let's limit the discussion to original crystals.
DRSD productions came with a superdome crystal while the white letter 1665 should have come with the flat crystal?
Is that correct?
Thank you for your help.. this has always confused me but I feel I am soooo close to understanding