Ferrari's Formula One championship leader Charles Leclerc said he was fully focused on his Italian team's Imola homecoming this weekend despite being robbed of a watch potentially worth millions.

The 24-year-old Monegasque, winner of two of the first three races, had his exclusive Richard Mille timepiece stolen off his wrist in the Italian seaside resort of Viareggio on Monday night.

"I won't go too much into details. It hasn't been a great experience. I cannot say much more than that," Leclerc told reporters at Imola on Thursday.