Sure!
A modular movement uses a base calibre, like the ETA 2892 (Omega 1120) and places a module on top of that movement with whatever complications are needed/wanted. It's powered by, but not really geared into, the gear train of the base calibre.
When I say it's lazy watchmaking, I'm mostly being a snob; there's nothing wrong with a modular movement inherently, the problem I have with it is that you're not taking the time to do the watchmaking.
As an example, the Speedmaster Reduced has a modular movement; it's an ETA calibre with a Dubois Depraz chronograph module stacked on top. The Speedmaster Professional would be an example of a non-modular, or integrated, chronograph.
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