Not sure if I would term the watches on his website as Jackson's. Don't think he offers any customs. He gets his watches from a supplier in China and sells it on his website. I doubt he has any qc or checks before he ships them out. Watches are often flawed in some way - reports of dirty dial, faulty crown, scratched case, etc.
I returned mine for a full refund. Came with scratches on case, some dirty specks inside the dial and the watch was running 10mins slow per day.