I have had a variety over the years which include both Fortis, Omega and Breitling, I think the Breitling Aerospace suits me best - it has all the functions needed including UTC, stopwatch, day and date. The watch is battery powered and gives 3 years service at least before a change is required, being quartz powered its also very accurate. In addition its titanium and therefore not too heavy unlike some aviation chrongraphs, its also a fairly attractive timepiece that can be worn all the time, the only downside is the price £2000 new tax paid although I have seen them second hand for £600 - £700.
One mans meat etc -I will stick with my Aerospace which I have owned for 12 years