Tekrar COSC konusuna donecek olursak, wiki'de soyle bir bilgi var:
"Among others, Ball Watch Company, Breitling submit all their movements for COSC certification, Bremont, MontBlanc, Maurice Lacroix, Chanel, Invicta, Baume et Mercier, Chopard, Chronoswiss, Ebel, Enicar, Girard-Perregaux, Mido, Omega, Oris, Patek Philippe & Co., Rolex, TAG Heuer, Stowa, Ulysse Nardin, Vacheron Constantin, Waltham International and Zenith are brands that submit at least some of their movements for COSC certification. Audemars Piguet, Breguet, IWC, Jaeger-LeCoultre, A. Lange & Söhne, Grand Seiko, Franck Muller and Piaget, Bvlgari are among the expensive brands that do not submit their movements to COSC."
Muller, Breguet, IWC gibi baba markalarin COSC'u iplememesi konusunda ne dusnuyorsunuz?