Came across these photos that show quite well what is meant by "electromechanical". There are 250 components in the Calibre S, which is battery powered The Calibre S is now 10 years old, being launched as the same time as the Monaco V4. While we haven't seen any new Calibre S models for a couple of years now, the movement is still detailed in the 2015 catalogue. The last new Calibre S I can recall was the Link launched in late 2011.