omgiv Posted June 17, 2014 Report Share Posted June 17, 2014 Hey Guys, I was wondering if anyone has any information on the differences between these crystals 25-295-C2 (16610 etc) 25-295-C12 (116610 etc) 25-295-CAR (116710 etc) I was always under the impression that 295C crystals were the same except for the addition of AR on the cyclops, and that the gaskets used were the changing factor. I ordered a C12 and a CAR crystal to see what was different but was hoping someone had something in the meantime. Thanks!. Quote Link to comment Share on other sites More sharing options...
alligoat Posted June 17, 2014 Report Share Posted June 17, 2014 C is Cyclops CAR is cyclops anti-reflective C1 is cyclops with the #1 gasket- for DJs, etc. C2 is the #2 gasket for a 16610 sub I don't know what C12 is, but like you say, if it's for a 116610, it would be another type of gasket. Quote Link to comment Share on other sites More sharing options...
dbane883 Posted June 17, 2014 Report Share Posted June 17, 2014 I believe the C1 code is correct for a 2.3mm gasket. C2 denotes a 2.5mm gasket. The package of the 25-295-C12 crystal comes with a C1 gasket (presumably 2.3mm). Full code is 25-295-C12-C1 My guess is the C12 denotes AR AND 2.0mm thickness rather than 1.8mm for all other 25-295 crystals. While we are here, what is the correct full code for a 114060 no-date subC? Quote Link to comment Share on other sites More sharing options...
omgiv Posted June 17, 2014 Author Report Share Posted June 17, 2014 Thanks guys! It is almost like opening a can of worms. CAR cannot simply denote AR on the cyclops because both the 116710 and 116610 have AR on the cyclops, but have different crystal numbers. The C2 gaskets I have aways used and seen in the packaging have been 2.7mm. C1 gaskets have been 2.3mm. You may be onto something with the different thickness in crystal though. I looked in my parts drawer and have a chipped crystal that is 29-295-C2 but it is opened. I will report back when I get the others if I find anything out. I don't know if my R20 has the 114060 but I will look. Thanks! Quote Link to comment Share on other sites More sharing options...
omgiv Posted June 17, 2014 Author Report Share Posted June 17, 2014 My R20 stops in 2009 and doesn't have the 114060 listed. It lists the 14060M having a 25-286-1 crystal. I also looked online and came up empty. Sorry I can't help more. Quote Link to comment Share on other sites More sharing options...
dbane883 Posted June 17, 2014 Report Share Posted June 17, 2014 Its a mystery. I've looked on and off for couple months. Very strsnge Quote Link to comment Share on other sites More sharing options...
automatico Posted June 18, 2014 Report Share Posted June 18, 2014 Just now measured three genuine 295C sapphire crystals removed from: OQ 17013...30.4mm od 29.5mm where gasket mounts 2.04mm thick DJ 16233...30.4mm od 29.5mm where gasket mounts 2.10mm thick DJ 16234...30.4mm od 29.5mm where gasket mounts 2.02mm thick The gaskets are all the same...2.35mm high. I have found genuine 295C in my watches from the late 1980s/1990s not to be exactly 2.0mm thick most of the time. Later models may be closer to 2.0mm. The crystal gaskets are all used, they might be off a little. Quote Link to comment Share on other sites More sharing options...
omgiv Posted June 18, 2014 Author Report Share Posted June 18, 2014 Thanks for the measurements automatico. When I get a free moment, I will measure the 25-295-2 crystal I have to see if it matches yours. Quote Link to comment Share on other sites More sharing options...
rsh Posted June 18, 2014 Report Share Posted June 18, 2014 I recently picked up a pile of used crystals. Most are NON-AR 1.8mm 25-295c crystals with LEC. One of the crystals is an AR 25-295c, i dont know what it is exactly called by rolex but it is a 1.8mm crystal. Here is an interesting one I have also and want to know what it is and model it fits......it is same dimensions in circumference, like 30.4 29.5 but it is 2.0mm thick, much like older 2.0 non LEC crystals but this has LEC and it has AR cyclops. It may not make a big difference as the 0.2 thickness goes BUT what is interesting is the side profile of the beveled edge is slightly different. I need to take pics when I get a chance. Quote Link to comment Share on other sites More sharing options...
mymanmatt Posted June 19, 2014 Report Share Posted June 19, 2014 I think the 2.0mm is for a sea dweller. 1.8mm is for everything else Quote Link to comment Share on other sites More sharing options...
rsh Posted June 20, 2014 Report Share Posted June 20, 2014 SD crystal is thicker and has no cyclops, so that is not it Quote Link to comment Share on other sites More sharing options...
alligoat Posted June 20, 2014 Report Share Posted June 20, 2014 And the SD crystal isn't a 295, it's a 286, slightly smaller OD Quote Link to comment Share on other sites More sharing options...
automatico Posted June 20, 2014 Report Share Posted June 20, 2014 SD is 285 = 28.5mm AK is 286 = 28.6mm Ref number = outside diameter. Quote Link to comment Share on other sites More sharing options...
alligoat Posted June 20, 2014 Report Share Posted June 20, 2014 I was close! Isn't the 14060 also a 286? Quote Link to comment Share on other sites More sharing options...
dbane883 Posted June 21, 2014 Report Share Posted June 21, 2014 I was close! Isn't the 14060 also a 286? Yes it is Quote Link to comment Share on other sites More sharing options...
automatico Posted June 21, 2014 Report Share Posted June 21, 2014 "I was close!" Cram a 285 on an AK, put a 7.0mm tube/crown on it, machine the gasket groove to accept a 1.0mm gasket and have a little bitty SD. aka Sea Dipper Quote Link to comment Share on other sites More sharing options...
omgiv Posted July 5, 2014 Author Report Share Posted July 5, 2014 Okay....so my crystals finally arrived and I had a minute to spend with them. I had an old/chipped 25-295-C2-C1 crystal in my drawer. I ordered both a 25-295-C12-C1 and 25-295-CAR-C1 crystals. Here is what I found when I opened the packages: 25-295-C2-C1 Thickness: 1.8mm Outer Diameter: 30.31mm Gasket Ring Diameter: 29.49mm Thicknes of Top Half: 1mm 25-295-C12-C1 Thickness: 2mm Outer Diameter: 30.35mm Gasket Ring Diameter: 29.49mm Thickness of Top Half: 1.14mm 25-295-CAR-C1 Thickness: 1.8mm Outer Diameter: 30.39mm Gasket Ring Diameter: 29.5mm Thickness of Top Half: 1mm What is interesting is that all of the gaskets supplied with the new unopened crystals were 2.7mm thick. I don't know for certain what was in the crystal I had since it had been opened a while ago, but there was a 2.7mm gasket left. So it looks like the new 116610 Sub gets a 2mm crystal with AR and is supposed to use a 2.7mm gasket. The CAR crystal has the same profile of the 295C crystal I have. The only difference seems to be a slightly different outer diameter and AR on the cyclops. Here are a few pictures of the the crystals and a comparison of the 295-C12 and 295-CAR. 25-295-C12-C1 Crystal 25-295-CAR-C1 Crystal Comparison of the two (C12 on the left and CAR on the right) This puts a few questions I have had to rest (at least for me) and I hope that others might find the information useful. Thanks!!! Quote Link to comment Share on other sites More sharing options...
dbane883 Posted July 6, 2014 Report Share Posted July 6, 2014 Thank you for this. Surprised there are slight variances in widths Quote Link to comment Share on other sites More sharing options...
dbane883 Posted July 10, 2014 Report Share Posted July 10, 2014 Does the SubC crystal have AR only on the cyclops? Or is the entire crystal AR'd? if so only on the inside? I dont beleive the outside (top) is AR'd Quote Link to comment Share on other sites More sharing options...
omgiv Posted July 10, 2014 Author Report Share Posted July 10, 2014 The SubC crystal (25-295-C12) only has AR on the cyclops. It is applied to the bottom of the cyclops and the underside of the crystal where the cyclops sits. This is the same as the other crystal as well. I don't think Rolex has AR'ing entire crystals yet. Quote Link to comment Share on other sites More sharing options...
dbane883 Posted July 10, 2014 Report Share Posted July 10, 2014 ok so the bottom of the crystal is AR's as well? ...........It is applied to the bottom of the cyclops and the underside of the crystal where the cyclops sits. Quote Link to comment Share on other sites More sharing options...
omgiv Posted July 10, 2014 Author Report Share Posted July 10, 2014 Yes. Freddy has a great picture showing it. If you google Rolex crystal AR, it will show up in the images. It is way better than I could show. Quote Link to comment Share on other sites More sharing options...
omgiv Posted July 10, 2014 Author Report Share Posted July 10, 2014 Hope he doesn't mind me linking to his picture. http://i95.photobucket.com/albums/l127/freddydynip/062-2_2__tonemapped1.jpg Quote Link to comment Share on other sites More sharing options...
dbane883 Posted July 10, 2014 Report Share Posted July 10, 2014 Ok great. So its single AR'd. Thanks Quote Link to comment Share on other sites More sharing options...
omgiv Posted July 10, 2014 Author Report Share Posted July 10, 2014 I think there is a coat applied to the top side of the crystal under the cyclops and and coat applied to the bottom of the crystal under the cyclops. Quote Link to comment Share on other sites More sharing options...
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