Unfortunately there Is no right or wrong answer. All of the watches above are great for everyday wear. If you have a small wrist you might want to stick with something under 45mm. The PO comes In 42mm thats a great everyday piece. The Breitling SOH Is 46mm but It's not a real heavy watch and Is not bulky.The Tag Is a 43mm and Is one of are newest reps, 43mm may be the sweet spot, not to big not to small. What I would do Is read some of the fantastic reviews that the members here have done. RWG has some of the best Information than your likly to find anywhere. Members have spent many hundreds if not thousands of hours doing research for there reviews over the years. Why not take advantage of this Incredible data base? This Is also the very best way to learn about timepieces, reps In general. So now you have a great starting point with some fantastic reps to use as a guide.I hope you decide to stick around after you find what your looking for, good luck and welcome to RWG. Mike