Sinn established itself as a brand for professionals from its introduction in 1961. The model lines are full of technical innovations and achievements applicable to professional (and amateur) pilots, astronauts, engineers and divers. They would send watches into space in the early 90s aboard Mir and Columbia missions. In the mid 90s the company began introducing magnetic field protection to its watches as well as revolutionary Ar-dehumidifying technology and special oils which resist exposure to extreme temperatures. During this period in the 90s Sinn would partner with Bell & Ross for a number of models including their famed "Bomb Disposal" watch.
The early 2000s saw more material improvements for Sinn, such as a lubrication free movement and specially hardened (tegimented) and sourced (submarine) steel to meet compliance standards for diving equipment. More recently, the TESTAF line was introduced in 2012 to meet the first technical standards for pilot watches.