CBMM / NiobiumWorld's first niobium watch In partnership with CBMM (Companhia Brasileira de Metalurgia e Minerao) the biggest Niobium miner in the world, part of the Moreira Salles Group, Dwiss produced world's first niobium (Nb1Zr) watch case. Niobium is a completely hypoallergenic mineral and has optimal shock absorbing properties, making it perfect for the watch industry and ideal for consumers. Case Niobium case (Nb1Zr) Case diameter 41mm Case thickness 10. 5
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