SEIKO OPTICAL PRODUCTS
Rim : Titanium Alloy
Bridge : Pure Titanium
End-piece : Pure Titanium
Temple : Pure Titanium / Carbon
Names of the parts of the frames
Materials that are used in the frames
： A metal with superior lightness, strength and corrosion resistance.
Metal (nickel silver)
： An alloy of copper and nickel, etc.
Super elastic alloy
： A typical alloy of titanium and nickel, etc. This is a material with extremely good shape stability.
： Currently, the majority of plastic frames are an acetate material.
： Made into an alloy, such as with copper, silver, nickel and palladium, and used as k18 or k14.
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