Value retention is rarely good on any quartz, so please don't buy on that basis. For someone like my wife who isn't interested in watch movements, then a quartz would make sense for her and I'd be buying the Omega. I understand there is a large price difference, but, in years to come I think the Aqua Terra will be the design that is timeless by a Brand that is continually improving. Perhaps Tag is trying too hard to pander to the fashion masses, where the Omega is loyal it's range, even if it has thrown in a few diamonds for fashion purposes...