Invicta Pro Diver glass replacement

I have Invicta Pro Diver 8926OB Automatic Watch Men - 40mm need to replace my watch glass as it has lots of scratches so please guide me how shall i do it ?

got this options for glass from chatgpt but need manual on how to replace it correctly

Best options to try first:

  1. 30.0 mm × 2.5 mm flat crystal
  2. As a backup, 30.5 mm × 2.0 mm

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