The Ace Jewelers x Elka Watch Company Diversity Series is the result of a friendship between Alon Ben Joseph of Ace Jewelers and Hakim El Kadiri of ELKA Watch Company. The collection consists of four watches, each using a different type of numerals on the dial. The watches are powered by a La Joux Perret G100 self-winding movement with a power reserve of 68 hours. Production for each version is limited to just 25 pieces. The set presented here is a matching numbers set of all four watches in the Ace x ELKA Watch Co. Diversity Series.