Is it REALLY SAPPHIRE???!! Testing watch glass.... 

It's "Jody" at "Just one more Watch" brain fart😂🙄

Interesting that the three Chinese watch crystals test higher than the Breitling.

sadly this is a very bad test, that proves nothing this tool will only test thermal conductivity now you would think that would be enough but no if you use the same tool on the "sapphire" on an iPhone it will show as sapphire on the tool. But it scratches at a MoHs level 6 the same as glass, if it was sapphire it should not scratch until 9 HUGE difference, this thing will tell you it is sapphire even if it is not. A lot of company's will basically just sprinkle in aluminum oxide dust (what sapphire is made from) into glass, but unless that aluminium oxide is pure no glass no silica and has time to crystallize then it is not sapphire it has no property's of sapphire, it is amorphous which means it has no crystal structure which means it is in no way shape or form even similar to sapphire. But legally they can call it sapphire glass even though it has none of the property's of sapphire at all. If you want to do a real test to find out you would need a set of MoHs picks, or if that is a bit much a set is not cheap buy a cheap quartz crystal off of amazon or eBay if it can scratch it it is 100% not sapphire.

I use the exact same tester. I warm it up then "tune" it up to 2 green lights. Then I test away. I've found sapphire on the least expected watches. I use it on gemstones as well. It's really a very nice tool. You'll find yourself testing every damn thing you can like I did. It's an obsession. Lol!

I bought mine from Aliexpress for about $10. The dial to select the bars is actually more for the sound than the exact calibration for it to work properly. When powered on just wait for the "lamp on ready ok" button to be lit and make sure your finger is touching the metal part on the back to close the circuit.

Hey mate. Nice video, although there's something you should know. Diamond testers (like the one you have) don't measure the "hardness" of materials, but rather measures other properties of the material and compare them with the ones of an actual diamond. I think the particular one you've got is based on thermal conductivity (meaning measuring how heat transfers through the material), so you're measuring just this single property. I'm guessing you're getting results very different/similar to those of diamonds because of the variety of materials, coatings, widths, etc.

Excellent demonstration! Thank you for showing us on such a variety of watches. It clearly does work and it looks like it just needs to be properly adjusted for the sensitivity.

really cool! ive been looking for this kind of video about sapphire crystals on watches. thanks!

Seriously all those watches you have laid out I either have or am planning to buy! You have good taste Aron! Digging the video!

Seiko should call their crystals Softlex!

That is the video i was looking for because i have one tester on the way . I supposed that the use was straight forward but this helped ❤

I bought one diamond tester II and that scratches the glass of the watches... and mine didn't work well. Mine just detect my fingers as sapphire.

Great video 👍

It mistakes moazinite for diamonds

you set the meter to wear the first light just lights then test. when you see 7 or 8 on the meter its sapphire if its diamonf then its diamond.

Oh man I'm dying to try this on my Orient Triton. It says sapphire but doesn't really look like it. Maybe it's the AR...? Ordered the tester. Thanks!

This is not a testing video, this is just a playing-with-my-new-toy video, sorry.

An excellent truth machine against watch makers' bullshit claims. I look forward to seeing you giving future watches the once over. Great video

Great video! Its nice to check those glass crystals even just once to make sure that what is says on the watch is true. Thanks for sharing 😊👌

Looking at my ever-increasing watch collection (I stopped counting at 70) I wonder if I should invest in such a thermal conductivity tester to find out who fooled me with their specifications? I tried the water droplet test - not reliable for greasy or coated surfaces. So far the 'ping' test (snipping your fingernail against the surface) did the best job for me: high pitch sounds for minerals, almost none for sapphire. But then: a thick plastic glass does not ring either, but may scratch immediately. And a "scratch test" is not an option.. To my astonishment some extremely cheap China watches (like your GuanQins, Nesun etc.) appear to use sapphire, my mid 1970s Citizen 8110A as well? I do not know the price difference of mineral vs sapphire, but I doubt that it is used on budget watches. So maybe I should shell out a few bucks at AliExpress for such a heat tester after all? Cool to see it in action on watch glasses, thanks!

The results are good with this cheap tester. Interesting that the cheap Chinese watches have Sapphire crystal and Seiko watches, most of them, have not. Yes, something to think about mr. Seiko!

Just ordered one through your link. Thank you and well done.

Sapphire crystals are cheap now. I've bought several for some of my old watches for about $15 each from China.

Thank you for sharing, great video, I really appreciate the information.

I ordered this detector yesterday!. Please upload video about Starking ASAP :)

nice video. just ordered one. thanks for the link govna!

The breitling is beautiful mate!

It tests by thermal conductivity

Nice! Can you make a test in flame fusions? Thanks

Great video. Always good to have a test for these things

Good video

Thanks buddy I just ordered one of these from your link.

It works

What's the approximate price of this glass for 3.5cm wide and 1mm thick glass? e.g. for an order of 100 pieces..

Very cool Aron, and well worth the $16 bucks just to have for "peace of mind" testing on new or used watches where you're not certain if it's sapphire. One thing that was interesting, you seemed to have gotten a higher reading on the cheap Chinese watches with sapphire than the Breitling, which may be a little concerning? ;-)

Very interesting gadget! Thanks for sharing.

Will a diamond scratch that glass real diamond? Hmm 🙂🤞😊🤣

use an actual natural sapphire as a control reading, before testing the watches.. also moissonite can be used as a cheap alternative to a sapphire lense.. and be passed off as sapphire.

jereyrigeverything made a video about how saphire can set that off but sometimes the quality of saphire varies like the crap apple watches have on them

You provided a few false information . This tester has nothing to do with hardness. It works based on thermal conductivity. You also said that sapphire crystal is in the diamond hardness range. Not even close. You should really educate yourself before you make a video.

Very cool!! Great vid brother!!👍👍

Have you tested the Orient Ray 2? I'm curious to know how it scores.

nice tele in the background.

Well how on earth do you know if you have a real diamond when it says that sapphire is diamond ??

Inexpensive, I think I'll pick one up. Thanks

The thing I dont get is: why should someone a saphire as mineral?

Isso não arranha o vidro?

whats that digital watch in the center

This is a nice tool (that's what SHE said). I need it!

Can you test huawei gt 2 pro if it is real sapphire?

Like your video, straight forward!

Nice video, great info to have. Thanks!

HELLO YOUR CASIO G SHOCK IS ORIGINAL FROM CASIO JAPAN 🇯🇵 OR FAKE FROM CHINATOWN ? DO YOU HAVE DOCUMENTS OF CERTIFICATION ?

I have an ultimus u8103 sles of sapphire glass but it is not scrach resistant please guide in this regards

Good stuff Aron! Thanks for sharing the info. Always enjoy your vids. _Scott

It's Jody, not Jamie, but anyway, an interesting video, buddy..

Sapphire is not as hard as diamond buddy. It’s a 9 when diamond is a 10. You need a point of reference to set the device with a known natural stone.

Pleas bro I have sappire coated pleas i weant to how mach prices

it cant measure the hardness it measures how theramlly conductive the material is

Can a diamond tester test a sapphire crystal ,?

This dude sounds like cutlerylover

Sound is better. Just tap on it with a nail.

Neat tool to have around. Pretty surprised by the hardness test on the Chinese watches. Nice vid!

All the diamond selector II readings are false with a gemologist report

Now do the same but just with the low tech water drop test?

You cannot test the sapphire material with a diamond tester,it’s not the tools that tells you the Mohs scale

Drop of water works for real vs fake

You that one more watch guy?

I believe the tester works on resistivity rather than hardness.

cheers aron

Very interesting

You have it adjusted too high. You'll notice in Jody's vids that nothing he tests goes off the meter. The way you have it sapphire and diamond would read the same.

Somethings wrong with your tester. Nobody says Hardlux and then puts Sapphire in the watch. Come on, man.

Cool video 👍

$8 with free shipping on Aliexpress

Long shin eh?

$A40.90 at Amazon Australia, about US$30.00. Is it any wonder Amazon is not setting the world on fire in OZ?

Compare guanqin and starking..

very nice gadget to have...

Man are you deliberately trying to mislead people or do you really know how these testers actually work?I have this tester and ivhave genuine sapphires ..they only work on diamonds

Breitling is softest... benefit of the doubt they did it on purpose because its a diver. Lol

test Chinese made watch with Chinese made instrument = made in China data results.

alot of china brand/ made watches, alot of their specs information are all WRONG..... including sizes . here the cock up is material of the glass! hahaha .

Why on that document? Shall we consider this fact cycologically?

No need for that testing tool just stick it to your forehead lol If it's ice cold it means it's sapphire.

Anybody who watches this video please do not think that a diamond selector too is going to tell you if it's Sapphire or not it tests a thermal reading which means it detects heat it does not tell you if it's a real sapphire it doesn't test the hardness scale and it does not test the refraction index which can tell you the difference between a fake Sapphire and a real sapphire or fake diamond and a real diamond or a moissanite as far as thermal goes a lab grown Sapphire conducts heat the same way lab grown diamonds have the same refractive index they pass thermal testers(diamonds selector ll) and look just like a diamond because they are in fact a diamond do not let anybody tell you that a lab grown diamond or a lab grown Sapphire or lab grown anything else isn't real it technically is real it just isn't natural 🤷 therefore the value goes down if you are going to buy anything to test diamonds sapphires rubies and emeralds you should buy all the tools in order to make sure you have what you have such as a refractometers to see refraction indexes electrical diamond testers to test electrical conductivity buy a loop to see the inclusions and read up on how to check natural from lab grown such as inclusions such but putting a thermal tester on a watch face is not going to tell you if it's really a sapphire Crystal or not🤦🤦🤦

A bit late, but that's not a hardness tester, it tests thermal conductivity.