I have 6.4" wrist, when I wear my 37mm, I feel it's too small. I prefer my 41mm (15500OR) over 37mm.
A lot of people have your wrist size and wear Rolex Day-Date 36mm and they like it.
Try it on, if you really like it, go for it. I am sure most people here will say it's too small.
Check the price on grey, if you buy it from ADs, ask for good discount on this model.
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