Nomos Glashutte Watch Tetra 27 Karat Steel Back 472. Manufactory, one word that combines two Latin terms: manus = hand, factura = to make, to produce. In the watch industry, producers are designated as manufactories if they design their own movements and produce a significant part of the caliber themselves rather than buying these components from a third party. NOMOS is one of only a few watchmakers with the designation of manufactory.