The MRG-B2100B-1ADR is the first of the G-Shock 2100 line to bear the MR-G stamp of quality. It is a study in metal craftsmanship, featuring case and bezel components made with the super-hard titanium alloy, Ti64. The bezel top is fashioned from Cobarion, an alloy that is four times harder than pure titanium and has a brilliant gleam comparable to platinum. The bezel alone consists of 27 different components, each individually polished for a stunning detailed texture. The bracelet is made of yet another special titanium alloy, DAT55G, which is both extremely hard and highly workable. The watch face is inspired by the traditional Japanese art of interlocking woodwork called kigumi, which like the bezel involves many small components. This traditional art is reflected in the intricately assembled two-part structure of the index marks and the depth and dimension of the latticework dial. The tiny openings in the face - craftwork that demands the very highest precision in processing technology - let enough light through to generate the solar power to keep the watch running. *COBARION is a registered trademark of the Iwate Industry Promotion Center and is manufactured exclusively by Eiwa Corporation. *DAT and DAT55G are registered trademarks of Daido Steel Co., Ltd.