The Maurice Lacroix Masterpiece Gravity is the latest addition to the Swiss watchmaker’s Masterpiece Collection, which is home to its most avant-garde designs. As is customary of the collection, the Gravity features a sapphire crystal—but this one is domed, which magnifies the components beneath it and allows for better viewing of the operation of the escapement and balance wheel. Hours and minutes are displayed on a white-lacquered offset subdial that is also domed, which along with the watch’s layering of co…