26mm movement in 46mm case??? Well, do correct me if I am wrong. Top gun miramar chronograph houses iwc inhouse 89365 caliber which measures 30mm (btw, this is their inhouse movement and not old valjoux modified movement eventhough i personally have no issue with valjoux or eta modified movement)
Anyhow, its normal pilot chronograph also measures at around 43mm now so top gun chrono is just 3mm bigger than its normal pilot chrono. If you conceive that "30mm" is not significantly bigger than "26mm", than you will see that from "43 mm" to "46mm" the 'gap is even smaller".
Anyway, if we can live with a panerai which houses its old OP caliber in around 30-31 mm in 44mm case, I dont see that we cant live with others? AP caliber 3120 which is not a huge movement has been house in 39mm 15300, 15400 and 42mm ROO Diver (more of 46mm lug to lug which wears like a big pilot). Yet, I dont hear anyone complain about AP ROO diver.
I also have no ideal how big one want their movement to be? Even big pilot 51011 movement which has long been the biggest inhouse movement only measures at around 37.8mm. Also, making big movement is not hard, making small or slimmer one will require greater skills.
As to the really big pilot watch, take note that original mark 11 pilot watch made in 1948 by IWC measures at 55mm. So the big pilot that you see today is already way smaller than the original pilot watch. Similarly, one may argue that panerai doesnt have to make a big diving watch since we could read the time clearly at 38-40mm since we are not diving and putting a '26mm' or '30mm' in a big 44mm will make 'watch fragile'. (I am not a scientist or engineer but i reasonably believe making a bigger case with thicker inner wall to accomodate "26mm" movement is a no brainer?).
Anyway, as far as i am concerned, watches are just our accessories. So long as it looks good and one likes it. It doesnt bother me as to whether it is 35mm or even 46mm. I still remember 5 years ago when I bought my first Pam, my sale told me, when they first started selling it, people asked her "u want me to wear it on my leg or neck?". Lol. Then "these days, when i bring out 44mm watches, they asked me got anything bigger?".
This will be my last reply on this topic as I dont want to get too personal and have nothing more valuable to add. it all boils down to the type of the watches and the DNA of the watches. Classic watch? Dress watch? Fashion watch? or Sports watch? Diff size have diff markets and needs. If the market cant accept any size, it will just soon be vanished from the market, as simple as that.