Not all titanium frames today are created equally. Seiko is well known for its durable, light-weight, and hypo-allergenic titanium frames. Seiko frames are created using Super IP, an extremely strong plating with excellent abrasion resistance. Consideration is also given to every aspect of wearing comfort and style, using polished enamel and diamond cuts on some models to produce a sophisticated image. SEIKO's new add vision collection of men's frames developed based on ergonomics so that progressive lenses may be used in optimal conditions. All details, such as the frame height, curves, and angles, are designed with consideration given to the features of progressive lenses. Each frame uses aspheric pads that provide protection against and resistance to slips and double-molded tips with resin embedded at the portions that touch the skin for improved fitness. Furthermore, a new material called ƒÀ-c that exhibits a higher elasticity among the titanium alloys is used for the temples, which indicates that the collection focuses on mounting progressive lenses beautifully and the comfort of wearing progressive lenses mounted frames.