Trying to say 3mm makes a genuine difference is absurd to be brutally honest
(sorry Burnsey :angel12:)
What is easy to forget is that the area of a watch is a function of the radius squared and small changes start to have a disproportionately large impact.
How 'big' a watch wears has to do with other factors as well, bezel thickness, dial colour etc etc... If however you look at a basic circular watch then you get this;
Diameter Area Percentage
32 804 -21%
34 908 -11%
36 1018 0%
39 1195 17%
40 1257 23%
42 1386 36%
43 1452 43%
45 1591 56%
50 1964 93%
So going up from a 36mm to a 39mm actually increases the wrist real estate by 17% which is significant (if the consensus is that it isn't significant, then can someone negotiate a raise with my boss please?)
Trying to say 3mm makes a genuine difference is absurd to be brutally honest
I like 39-40mm watches
I recently bought and sold a 46mm navitimer in a matter of 6 months because it was too big and likewise find the 36mm DJ too small whereas a 40nm case seems perfect!!
I do think, of course that it's all very subjective. I've seen pictures on here of people with much less than 7" wrists wearing 46 and 47mm watches that look daft imo......
Whether a persons wrist is round or flat makes a huge difference to how the lugs overhang and I think sometimes this has more impact on the look of how the watch sits than case size.
Like I say, my sweet spot is most probably 39mm-41mm....
On occasion I've looked at a 36 or a 47 and admired the look of it only to try it on and know I'll be flipping it in no time!!