Will It Fit?

[77T]

First the technical question, then the explanation.

Will an Oyster Perpetual 116000 36mm crystal fit properly in a President 118205 36mm case and pass the 100m pressure test?

Here's the reason - love my RG President but find the cyclops a pain in either low light or viewing at an angle. The Date is obscured about 80% of the time I look at it.

The idea is to replace the original with a plain crystal. Since the Day doesn't have any magnification and it's legible to me, I'll be able to read the Date without a cyclops.

Will keep the original crystal to switch back if I ever sell it - don't want to cleave the cyclops off the original for that reason. Could get another Day-Date cyclops crystal and cleave the eye off - but thought it might be easier if the Oyster Perpetual crystal is a direct fit.

Can any experts help? I'm not sure the 2 different crystals have any differences like height, shoulders, flange, etc. Thanks in advance for your input.

[kilyung]

Never having seen it done, I don't know but the diameter of each glass appears to be the same. I'd be more concerned about the thickness. Glass is pretty cheap so why not take the plunge?

[77T]

Originally Posted by kilyung

Never having seen it done, I don't know but the diameter of each glass appears to be the same. I'd be more concerned about the thickness. Glass is pretty cheap so why not take the plunge?

Thanks - want to make the right choice first time 'round vs. trial & error.

[Rikki]

I believe the crystals are the same size but they take different gaskets. 118 is 295-1 and the other 295-3. My book doesn't list the 116000 just 116203 so just a quess at this point. Rikki

[77T]

Thanks Rik. We have a Century 21 Certified guy here - Gary Wilson - and will run it by him before risking wrong choice.