• 1_COS
  • 3_COS
  • COS
  • 1_COS
  • 3_COS
  • COS

The Crown Operation System, short COS stands for Habring²'s exclusive patented world novelty. It means a Chronograph which is operable completely without pushers, buttons or other operating devices. In order to activate the classic stop-function the well known and well tried crown is sufficient - the crown only needs to be turned around against easily felt resistances. With the very own A11 calibre the COS gets "Felix" after 10 years.


      • Mechanical - hand wound or automaticly wound
      • Movement calibre A11COS
      • Patented crown-operation-system (COS) for operating the chronograph function by turning the crown
      • Indication of hours and minutes, small seconds at 9h, chronograph-function with
      • indication of seconds from the center and 30-minutes counter at 3h
      • KIF shock-absorber according DIN and NIHS
      • 25 jewels (handwound) and 29 jewels (automaticly wound)
      • Power reserve after being fully wound: approx. 48 hours
      • 84 (handwound) or 89 (automatic) maintenance relevant parts


      • 42mm 316L stainless steel in three parts with brushed and polished finish
      • Domed sapphire glass coated with anti-glare on both sides
      • Double crown seal, sapphire glass base
      • Water-resistant to 5 bar (50 metres)
      • Titanium on request


      • silver galvanized metal
      • Sunken registers with circular finish
      • Telemeter scale or date indication
      • Hour markers in rose gold
      • Polished and rose Gold plated hands

COS-Felix is available in different dial versions. Please check out Doppel-Felix for more colours. The classic dial of Chrono-COS is available on request.