The Certina 13-11 watch movement is a hunter calibre with various bridge shapes, including lever cock and banking pins or lever bridge with fixed banking. It offers options such as a Breguet hairspring, bimetallic screw balance, Reed's regulator, and cam disc regulator. Its functions include stem winding and setting, as well as a sub-second feature.
The Certina 13-11 features the following functions: