Nice watches you're looking at marcb.
I've had a TAG since 1987. Had it serviced twice during that time. I've done nothing more than treat it respectfully and send it in when it stops (as others, this then results in changing all the seals, etc. A thorough general cleaning (approx $400). Never had an issue with it but once within its' first couple of years and TAG resolved the issue without issue and without cost. I've nothing but positive experiences with them. My other watch is a Hamilton that D gave me last Xmas and I've tended to wear that most often these days. Larger size (which I like) and great for casual/business.
Enjoy your watch. I'm not a fan of ANY type of jewelery (rings, necklace, etc) on my body. But a watch...that's different!