MAN IN MOTION: Karl Lagerfeld sure gets around. Over the weekend, he was spotted in Ravenna, Italy, snapping photos of its spectacular mosaics from the 5th and 6th centuries. Turns out they’re for a book the designer is compiling for Chanel’s Metier D’Arts fashion show on Dec. 7 in Paris. “I had no time to make a movie,” he shrugged, explaining the Paris-Byzantium theme of the collection, which links to the Chanel founder’s penchant for Byzantine-style jewelry — a link rich enough to set Lagerfeld’s imagination racing. Lagerfeld also recently shot the Dior Homme campaign and cast his favorite male model and frequent sidekick, Baptiste Giabiconi. The forthcoming spots, which he described as graphic and modern, telegraph a move away from the edgy youths long associated with the brand. “There’s a move back to handsomeness,” Lagerfeld declared.