Exceptionally durable as well as light in weight and hypoallergenic, aluminum is an ideal material for a casually luxurious sport timepiece--an area where Bvlgari is rightly celebrated. Each Diagono Aluminium timepiece is further distinguished by a quartz or automatic movement made in Switzerland, a sapphire crystal, and a bezel which bears the famous Bvlgari-Bvlgari signature.