Great performer; s.s. is easy to care for,and the handle is comfortable and not slippery as one might assume. The factory edge is very thin and sharp out of the box. Dimensions are 225x117,2mm spine.
I was upgrading from my trusty Wusthof Grand Prix and got a fancy vg10 Gyuto and this around the same time. I’ve used the Gyuto less than a dozen times,because the F-631 is an absolute beast. So fun. So productive. I pretty much use this or a little paring kife for everything. As a poster on another site said "If I could only have one knife,I really wouldn’t mind if it were this one."
Very sharp OOTB,glides through food,great fit and finish. Don’t let the weight put you off the balance is such that you never notice the weight.