Tutima Glashütte 521

The Tutima Caliber 521 is based on the ETA Valjoux 7750 with a proprietary Tutima chronograph module. This caliber was developed to replace the discontinued Lemania 5100 in Tutima's military-oriented chronographs. The key feature is the large sweep minute counter (central chronograph minutes hand), which provides enhanced readability for timing operations. The module was engineered to be as compact as possible and has been registered for a patent. Used in the M2 and Saxon One chronograph collections, it maintains the functional spirit of the NATO Military Chronograph while using modern, available base movements.