A shopper looks at the window display of a Louis Vuitton store, operated by LVMH Moet Hennessy Louis Vuitton SA.

Rising champagne sales in Europe and demand for high-end perfume and watches help boost sales at LVMH Moet Hennessy Louis Vuitton by 3.5 percent in the first quarter.

The luxury group, whose broad holdings include Kenzo and Givenchy fashion houses and Dior perfumes, on Monday reported 8.62 billion euros ($9.8 billion) in revenue for the period.