I need a crystal for a 16 size Ball model case, is 45 mm correct for the diameter, any particular style.

Gary

Gary, the crystal size is determined by measuring the Crystal Bezel. We must measure the diameter of the bezel (gently guys) at three places and average the sum of those three measured diameters for a correct "fitment" diameter . . .

Gary, the 16s Ball case crystal I just measure is 43.5mm