Led by its Costa del Mar sunglass business, A.T. Cross saw an 11.3 percent increase in consolidated sales for the first quarter of 2008, to $36.3 million. Sales for the period, ended March 29, were up by 23.5 percent to $9.7 million. This time frame included five days of sales of Native Eyewear, which Cross recently bought. The gross margin was down by 1.3 percentage points to 55.1 percent. The operating margin was 52.3 percent, down from 55.5 percent in the same period in 2007. Net income rose to $0.6 million from $0.1 million a year ago. The first quarter is typically the company's slowest period. Cross is more optimistic about its sales growth, revising its target to 10 to 12 percent instead of 6 to 8 percent, expecting a boost from Native.