I think you are wrong.And you know nothing about the watch industry.
Am I supposed to care what you think?
OMG, some random dolt doesn't agree with me on the Internet.
However the **** will my life be complete now?
Edit: I'm going to expand on this so my post as some
substance, unlike yours.
The majority of timepieces only are used to tell the time. Some have the date as well, but a much smaller number have chronographs, secondary clocks (for an alternate time zone) etc. For the majority of fashion watches, they're just a plain clock face and maybe a text day/date wheel.
Take one of these watches and shrink it down to 30 or even 25 mm. It will still be usable for the exact same functions. That larger display wasn't really needed -- thus proving it is
unnecessary, as I stated. If you can't read your watch unless it's 4 cm wide you need to get glasses, your eyes should be able to resolve an image smaller that than.
Note: if your try to dispute this you'd be arguing that the whole Retina display craze is just marketing BS. To say that your eyes can see the difference between a standard display and a Retina would require acknowledging the true capabilities of a human eye -- making 40 cm larger than needed for a timepiece.
This is much like PC towers in the 90's. Did the majority of users need two 5.25" external bays, and 2 3.5" external bays? NO. Yeah, there's always the use-case for someone with an internal Zip drive, or a second optical drive for copying discs, but for the majority of users they never needed more than the one optical bay or one floppy disk drive. The extra space in the case, much like the extra diameter of the 40mm watch face, was wasted. The motherboard did NOT take up the whole side panel of the case, it could have been a smaller tower and worked fine.
The watches are all 40mm for the same reason the tower cases were all the same "well, that's what our competitors are doing and we don't want to be
less than them in the numbers on bullet points. We'd match them and not think in a more original, compact direction. Don't want to make a smaller casing,
only women would have a watch that small."