I had the same decision to make a couple of years ago and went with the Hamilton Khaki Mechanical
. It has held up very well and I still wear it all the time. The style may not be for everyone but it suits me well. One of my few pre-SF purchases that is still with me two years later with no regrets.
I am very impressed with the leather strap this watch came with. It is embossed Handcrafted in Germany and after much wear the thing is buttery soft, very comfortable and still looks new except for the creases. It matches up nicely against Horween Chromexcel if you care about that sort of thing.