Inside ticks a Sellita movement, a caliber SW200, which is in fact exactly the same as an ETA 2824. replica rolex When the Swatch group announced they wouldn t deliver ETA movements to non Swatch Group brands, costwatches several watch brands started to develop their own movements. These newly developed movements were mainly chronograph movements, and there are no real substitutes for the basic, but extremely useful, ETA 2824 and ETA 2892 calibers.