Or to force the user to pull the crown with both fingers from the sides and not from the bottom, what maybe could bend or cause harm to the crown tube.
But I'm only guessing, let's wait for a proper response.
I'm not familiar with the model but based on your photo it looks like there's a slight bevel around the back of the watch, and if so, the crown would perhaps overhang this bevel...
By: Emil Wojcik : December 2nd, 2019-11:44
...making the crown susceptible to getting caught on something. Just a thought...
Concerning your request, I have spoken to the head of our Case refurbishment Department :
By: ninolitaliano : December 6th, 2019-07:44
He informed me that it’s not an aesthetic reason why there is such a “rehaut” under the crown of certain watch models.
The reason is the different construction of our various movements.
The position of the winding stem varies from watch model to watch model. In some cases the “rehaut” is necessary otherwise the crown tube would be visible and the case of the watch would not be waterproof.