Bioceramic
A patented Swatch composite material.
Bioceramic is the material behind Royal Pop's matte, saturated colours. Roughly two-thirds ceramic powder, one-third biosourced material derived from castor oil. Strong, smooth, and unmistakably Swatch.
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Case
The full case is Bioceramic, including the crown and the lanyard attachment.
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Crystals
Front and back are sapphire with anti-reflective coating — separate from Bioceramic.
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Feel
Matte, silky, warmer than steel; lighter on the neck than a steel pocket watch would be.
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Don't
Don't market Bioceramic as scratch-proof. The crystals are scratch-resistant; the case is robust but normal use rules apply.