Titanium is an ultra-strong yet lightweight material. The case of this Obaku watch is made of pure Titanium, making it extra hard and extra light. The grey color of Titanium has a refined look and is hypoallergenic. The Danish design traditions that are incorporated into this watch reflect in the design of the blue dial and grey stainless steel link bracelet. Christian Mikkelsen is the designer of this watch. Go feel happy today!