Mary J Blige, Eric Dane and Russell Simmons each have designed a limited edition Ernst Benz watch to benefit Chrysalis, the nonprofit association that helps men and women transition from poverty. The collection, dubbed Time for Change, will offer a numbered series of 24 watches per designer in honor of Chrysalis’ 24th anniversary. Renderings of the watches will be unveiled on May 31 at the 7th Annual Chrysalis Butterfly Ball in Los Angeles on Saturday. Fifty percent of the proceeds from each watch sold — which range from $4,000 to $22,000 — will go to Chrysalis. Several watches also will be auctioned off on eBay in June, while the remainder will hit stores in the fall.