The Certina 25-68 watch movement, used from 1970 onwards, features Diafix combined settings for the escape wheel and third wheel. Unlike typical manual-wind calibres, the winding gear is integrated into the movement itself. This integration, along with the indirectly driven minute hand, contributes to a sturdy movement design with a relatively large balance and low profile. Additionally, the Certina 25-68 movement includes automatic winding, a sweep second hand, a hack feature, and a micro adjustable regulator.

The Certina 25-68 features the following functions:

• Automatic Winding
• Hack feature
• Micro Adjustable Regulator
• Sweep second