Union Glashütte UNG-27.S2

The UNG-27.S2 is an automatic chronograph movement manufactured by Union Glashütte. Based on the Valjoux 7750, it measures 30mm in diameter and 7.9mm thick, beats at 28,800 vph with a 65-hour power reserve, and contains 29 jewels. The movement features a silicon balance spring and includes a date display with a 60-second and 30-minute chronograph, operated via two push-buttons and a corrector. It remains in production.