This LUM-TEC watch features MDV Technology® The Lum-Tec B89 Bronze is powered by a Swiss Sellita SW200-1 aic movement.
Other features include a 44mm Solid CuSn8 Bronze case and crown, double curved low dome sapphire crystal with military grade inner AR coating, and a threaded crown with Viton® seals.
Lum-Tec watches are not mass produced. They are hand built in small batches in their Mentor Ohio facility by highly skilled watchmakers. Each watch is carefully assembled and tested in Mentor Ohio USA!
Watch the review here: https://www.youtube.com/watch?v=q7iP_JeNzjc