Panerai are notorious for inconsistencies, one reason why some of their odd items become worth so much. They outsource dial manufacture and undoubtedly use more than one maker.
Looking at some of my yearly catalogues i can now see the 240 (strap)/279 (bracelet) models did appear first in the J/2007 year and remained into K/2008 then changed to the 240/296 in L/2009 due to the bracelet specification change on the 279 > 296.
I wouldn't stress over the "Swiss Made" positioning too much, perhaps the earlier J series were 'tweaked' a little before the K series arrived
but if you want absolute assurance, have the watch looked at by an AD or Boutique if you can.