Rolex genuine crystals (no LEC) - Which model each crystal fits?

Flock · 17/7/20

Hello all

I have some Rolex genuine crystals without LEC that I sourced a long time ago and never found use for them. The crystals were completely forgotten on the bottom of a drawer and now that I’ve found them, I don’t have a clue to which models they fit :lol:
So, I decided to share some photos and who knows if I can get some help identifying each one.

Sorry for the measuring tool, but I don’t have a better one

Crystal 1:

Crystal 2:

Crystal 3 (this one seems domed and not flat on both sides):

Crystal 4:

Sorry if the photos are not perfect, but I’m not a very good photographer

All the best to all of you guys and thank you very much for your time!

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KJ2020 · 17/7/20

You should measure at the bottom, smaller diameter part of the edge profile.

#1 looks like it would measure 29.5mm if measured there so it would be suitable for 16610, 16710 and other similar sport models. These would technically fit 6 digit models also but without LEC they were probably made for 5 digit ones. Also the case if there's no AR under the cyclops.

Flock · 18/7/20

KJ2020 said:
You should measure at the bottom, smaller diameter part of the edge profile.

#1 looks like it would measure 29.5mm if measured there so it would be suitable for 16610, 16710 and other similar sport models. These would technically fit 6 digit models also but without LEC they were probably made for 5 digit ones. Also the case if there's no AR under the cyclops.

Correct. Measured at the bottom: 29.5mm

The crystals are lacking the crown engraving because they were “taken out” before going to the final process, the crown engraving.

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KJ2020 · 18/7/20

What about cyclops AR?

Flock · 18/7/20

KJ2020 said:
What about cyclops AR?

How can I check that?

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KJ2020 · 18/7/20

You would need to learn the visual difference between a cyclops with AR on it and one without. A no AR cyclops will show light reflections to a much greater extent. That's the reason for using the AR coating. You can lay the crystal over an uncluttered background in a room with multiple light sources to help your analysis.

No AR

AR cyclops