SPM, or Sun Platinum Metal, is an artistic material with historical roots dating back to the 1920s.
Esteemed by the kings of the Showa Dynasty and exclusively used in Japan without international export, SPM holds a unique place in craftsmanship. Both are meticulously handcrafted, with an unprecedented material known as "SPM" taking center stage.TVR 515, Silver / Clear Prescription Lens (Regular) Drawing inspiration from the 1920s and TVR's commitment to meticulously capturing the vintage essence, the TVR514 and TVR515 are prominent features in the Spring/Summer 2017 Collection. This metal, a blend of nickel, chromium, and silver, harmonizes seamlessly with the human skin, minimizing the risk of allergic reactions.