An Inside Look at the Various Technologies Pioneered by Sinn

When mechanical engineer Lothar Schmidt took control of the Frankfurt-based Sinn watch brand in 1994, he planned to use his technical knowledge and add innovative technologies to Sinn's watches to enhance their functionality At the same time, Sinn developed technologies that made the brand's watches even more robust and readable Hydro TechnologyThe Hydro technology Sinn uses for its divers' watches ensures that their crystals are not susceptible to fogging, their dials uphold optimal legibility under water and their cases resist pressure down to every conceivable depth.

For Hydro technology, which is used in watches in the UX series, the case is filled with a colorless nonconductive liquid, whose specifications Sinn won't reveal To make its watch cases less susceptible to scratches, Sinn uses a technique called "Tegimenting." The case is sent to a specialist in Germany, where a "Kolsterising" method is used to harden the steel on and near the metal's surface Sinn's watch cases are built by Sächsische Uhrentechnologie GmbH Glashütte, where Schmidt is a co-founder and majority shareholder, but he prefers to keep all aspects of the tegimenting process at Sinn.

Sinn uses submarine steel for the cases of many of its divers' watches. . Source