These are the correctly-domed plexiglasses that will fit the 42mm EPSA super compressor vintage watches from the 1960’s-1970’s. They are brand new and sealed. They have the correct shape to allow the inner rotating bezelring to turn. I have tried them with success on many 42mm super compressors (for example on the ones in the photo, that are used for presentation purposes only). The last photo shows a schematic of these plexis. Their diameter is 38.50mm, height on the sides is 3.65mm and height in the centre of the plexi dome is 4.40mm. This line of plexi glasses does not include the armoured metal ring so you will have to use the one that is already on your watch. Please remember and note that I do not accept returns for such parts.
Feel free to contact me for any questions you might have.