The only thing I would say about companies like Tag and Rolex is that you pay for more than you get in the sense that you can get a comparable watch in every sense for less that just doesn't have the name/prestige. Both companies spend LOADS of $$ on their advertising and the cost is directly transferred to you when you buy their watch. You do spend some extra change for the name.
Just like comparing the Rolex Sea Dweller and the Omega Planet Ocean. Both very comparable (I've saw an incredible post on watchuseek.com on this) both are top notch in every aspect. Both chronometers. But one is half the price of the other. People could go back and forth all day saying one is better than the other but when I see that....apart from the price it's the whole Ford and Chevy thing. Really.
If you get the right watch from the right maker/company and get it used....sorry....PREOWNEDoff that auction site for example....you can get an amazing deal and WAY more bang for your buck. I've even seen some great deals on Rolex come and go. Heck, if I had more $$ I'd have probably went for it.....I'd love a Rolex but in terms of whats available to me financially and cost efficiency.....my Omega's were the way to go.
My Seamaster Bond Chrono (blue) keeps 1.5 second fast per day consistently and my Speeder keeps around 2.5-3.0 sometimes less a + a day. Both have perfect fit and finish and are a joy to wear. I got both for what it would normally cost for a Oyster GMT.
But if a Oyster GMT is what you have your heart set on.....there's nothing else for you
Admittedly, while many other companies buy high end movements...in fact: MOST companies do and customise/rework them to their specs.....Rolex has all in house movts.
No matter what quartz watch you get be it a Tag or a Seiko...if it breaks you can send it to the manufacturer, they'll rip out the movt and stick a new one in cheaply. Quartz will almost always tell better time than the best autos and it's WAAAAY cheaper. But it's the difference between a Yugo and a Bentley for a watch lover.
its hard to get a deal on any SS rolex sports watch right now the demand is just so high, i mean occasionally ya can find one but ya have to hunt and be lucky.
when i got my GMT2 i looked for a "deal" for over a month and finally found one for MSRP minus ~$300 and considered myself lucky.