Absolutley - for Panerais the 6497, whilst not exactly the same (the gen is a 6498-2 and has a higher beat rate), is openly available and costs around $30 to the trade. The cases are relatively simple to machine on a CNC and the dials are also straightforward with no Guilloche patterning etc, so these are a simple easy genuine swiss movt moneyspinner and the fact that they have cult following amongst gen owners means they will sell well - with a high profit margin on them.
I guess also the makers look at fashion trends in general - they are legit watchmakers so no doubt get all the trade magazines and attend all the watch shows so have a pretty good idea what is popular and will sell well.