The Omega SMP Ti was my first replacement dive watch for a TAG that I owned for about 20years. The Sub & Explorer II because they really cover everything (for me) as a dive watch and travel watch. I could do fine with just the 2 Rolex models, but the Blancpains were a nice add for a bit of upscale feeling in sports watches. The IWC because it was a gift. The Eterna Kontiki because it's a very limited run (5 of 50), is my only gold watch, and I'm a sucker for the dial. The Halios because I needed a beater.