There's pretty much 3 options, barring circumstances hardly possible.
Option 1 (most likely): they don't have the watches, want to bait you into sending them money and then bail.
Option 2 (also quite likely): they have some shit-tier replicas that they'll send you after getting your money.
Option 3 (quite unlikely): they have the reps and TDs can source them as well, but haven't told anyone yet or updated their websites.
Circumstances hardly possible: Chronosale have access to some super-underground secret garage factory that produces great quality F.P.Journes. The secret factory not only decided to give an exclusive deal to a low-demand dealer that few people have heard about, they also chose to produce a low-demand brand. You do the math on odds of all that happening.