Nice cut & paste thread..

Use to work in the Industry... So here's a quick FYI -
The cheapest Tag Heuer starts at approximately $1300 to $1500 AUS.
If anything goes wrong mechanically with the watch it is
not fixed. Instead they just replace the movement mechanism.
The cost of this said mechanism is no more then $42 USD total....

Nope...
You can get a Formula 1 for WAY cheaper than that, $1300 you're getting ripped. Sub $1000 easy, pay with cash you should be looking at around $800 I'd say.
And by mechanism, I take it you mean movement?
Tag use the following movements:
Primarily in house: Calibre & Mikrograph
Outsourced: Zenith, ETA, Rhonda and some other swiss manufacturers
Don't think you're going to find any swiss made quartz movement for $42 mate, not even an IWC or swatch... You can't even get a Tag opened and resealed for $42 and that's a fact.
Owned plenty of them ranging from the shitty formula to the links series, the aquaracer which I just got rid off and right up to the kirium.
So yeah, there you have it.
And just my 2 cents, if you're going to throw down big dollars on a timepiece check out Omega or Audemars Piguet, if you want a nice one without spending that much look at Raymond Weil.