Movements
Two kinds in one table. A component is a movement you can put in a basket — an ébauche or a module sold loose, with the footprint, dial size and hand-hole sizes that decide what will go around it. A reference is a calibre carried over from Calibre, the movement library in the folder next to this one: real, documented, and not for sale as a loose movement, so the designer only offers it in Concept mode.
Sort by height to find what will fit a thin case; sort by Ø to find what will fit a small one; pick a complication to see every movement that has it, buildable or not. Any figure a source does not state is a dash rather than a guess, and a movement its maker no longer makes says so.