Junghans Max Bill OEM Crystal Replacement

[Manlodan]

Hello,
I recently bought a Max Bill 34mm (hand-winding) that does not have the original crystal. The replacement is too tall, such that the dome of the crystal does not follow the line of the case as it should. It really throws off the whole look of the watch to me, so I would like to replace it with an OEM one. I understand the controversy about the Sircalan coating, and I'm not worried about that. The most important thing to me is the proper profile. Unfortunately I haven't been able to find a source for a replacement. I read that Junghans will replace it relatively cheaply, but the service portal on the website only works in Germany, Denmark, and Austria. Any help is appreciated!