His move has found sympathy among many entrepreneurial Frenchmen and women, who feel stifled by a lack of banking support.
Callet described his act as one of desperation at the "permanent sabotage of the economic fabric of France", whose growth is near-stagnant and has record unemployment levels.
Callet said he felt "humiliated" as the size of the loan was very reasonable given his turnover for last year of €300,000 - his best result and triple that of his first year in 2008.
"This is not a kebab shop. My restaurant is in the Michelin guide and film stars come here," he added.
"Bankers who turned me down know me.
"I've never had financial problems and yet I find myself in this situation.
"They are not doing their job. That's why we have so many businesses in France who resort to crowdfunding.
"France has problems understanding this. That's why London has become the sixth French city."
Callet said he had received a personal apology from one bank director and was also contacted by Qatar's embassy in Paris, which offered to put him in contact with a Qatari bank.
But he said the plan to open the second restaurant has fallen through, adding: "I don't want to work with bankers any more."