Need crystal for Vintage Super Sea Wolf 75atm

[dg33]

Such a bummer-- I had a hard time taking off the case back to adjust a set lever and finally used a waterproof case holder to fix the case into position.  I applied so much torque to the case with the wrench that the case moved in the holder and I put a small chip at the edge of the crystal.   I don't suppose anyone has a crystal they would like to sell?  Thank you.  David