The Latitude model was introduced in 2005. It retains the clean economy of form of the original Hard-edge, and adds a dimensional, ridged design to the casing. The geometric pattern is achieved through a method called “diamond cut” in which patterns are made with a diamond tipped engraving bit.

 "We took the unusual, if inefficient, approach of employing this technique used for jewelry and the ornamentation of metal, and applied it to polycarbonate" -Eiichi Tsubota, founder of Tsubota Pearl. The effect is simultaneously luxurious and utilitarian.