Unlike link the Breilting and Rodania variants, the single pusher chronographs from Omega were cased in oversized 38mm cases, and were powered by a caliber built to a higher standard, Lemania's caliber 2221. Overall, the Omega variant is just a more attractive looking watch link than the rest, and the further consideration that went into its production is worth noting. Though there's something to link be said for a sterile watch, free of branding, the Omega signature gives the appearance an upgrade of sorts.