Omega Speedmaster case crown guard questions

Hello Speedy owners! Hope all is well with you guys,

I have a small question, I wanted to see if any of you speedy owners (speedy pro case ref 145.xxx) have ever noticed that the crown guard on the bottom of the crown, sits slightly higher (but ever sooooo slightly higher) than the crown guard at the top?

Meaning that on the top part the crown is a slightly bit more exposed than the bottom part.

See pictures for reference!

I know the model being shown is a broad arrow from 1997-2002 but they use the same case as a pro.

thankssss

The flat sides of the case are slightly sloping outwards also on my coaxial Speedmaster, both on the pusher/crown side, and the left side. I assume it's a common feature.