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howieleem · 24 June 2011, 06:13 AM

How do i tell if its a saphire or acrylic on my 1986 16013 DJ?

drtooth73 · 24 June 2011, 06:21 AM

acrylic is very thick and can be polished, sapphire is virtually scratch proof,

jay_man2 · 24 June 2011, 06:35 AM

I had my 16013 DJ appraised recently, and the appraiser indicated that it was an acrylic crystal. 9 series serial number from 1986, purchased new in 1987.

MonBK · 24 June 2011, 06:57 AM

Here's a simple trick.

Touch your forehead with the crystal.

If it's cold to the touch it's sapphire, if it's warm it's acrylic.

Saxon007 · 24 June 2011, 10:14 AM

Quote:

Originally Posted by MonBK

Here's a simple trick.

Touch your forehead with the crystal.

If it's cold to the touch it's sapphire, if it's warm it's acrylic.

Of course I had to actually try this ridiculous maneuver. Unbelievably, it actually works.

MonBK · 27 June 2011, 12:48 AM

Quote:

Originally Posted by Saxon007

Of course I had to actually try this ridiculous maneuver. Unbelievably, it actually works.

It has worked since 1987 when I was first tought how to do it.

buke45 · 10 July 2011, 11:19 PM

Quote:

Originally Posted by Saxon007

Of course I had to actually try this ridiculous maneuver. Unbelievably, it actually works.

It does

Jocke · 27 June 2011, 03:40 AM

Quote:

Originally Posted by MonBK

Here's a simple trick.

Touch your forehead with the crystal.

If it's cold to the touch it's sapphire, if it's warm it's acrylic.

I don't work if you have the watch in the freezer.

dddrees · 10 July 2011, 11:22 PM

Quote:

Originally Posted by Jocke

I don't work if you have the watch in the freezer.

Just don't touch the steel with your tongue.

Payesrob · 23 August 2011, 07:28 AM

Quote:

Originally Posted by MonBK

Here's a simple trick.

Touch your forehead with the crystal.

If it's cold to the touch it's sapphire, if it's warm it's acrylic.

What if it's a warm day?

Chipmunk · 23 August 2011, 07:46 AM

Quote:

Originally Posted by Payesrob

What if it's a warm day?

Then it's acrylic.

MonBK · 9 September 2011, 12:31 AM

Quote:

Originally Posted by Payesrob

What if it's a warm day?

Warm or cold outside doen't matter, you will still feel the difference.

Jocke · 9 September 2011, 05:24 AM

Quote:

Originally Posted by MonBK

Warm or cold outside doen't matter, you will still feel the difference.

What if you only have one watch?

watch watcher · 24 June 2011, 07:22 AM

Sapphire shows fingerprints, acrylic doesn't.

learningtofly · 24 June 2011, 07:35 AM

Give it a whack on something hard - if it scratches, it's acrylic

iamthewatchman · 30 January 2012, 11:24 AM

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Quote:

Originally Posted by learningtofly

Give it a whack on something hard - if it scratches, it's acrylic

jamesbondOO7 · 26 June 2011, 09:52 PM

Quote:

Originally Posted by watch watcher

Sapphire shows fingerprints, acrylic doesn't.

Exactly the test I was going to suggest.

Actually sapphire needs to be cleaned all the time to look good, which is a pain in the proverbial.

sherwin · 27 June 2011, 12:31 AM

But in the long run, sapphire crystal is awesome because you can actually wear the watch without worrying about chipping the edges.

jamesbondOO7 · 27 June 2011, 01:30 AM

Quote:

Originally Posted by sherwin

But in the long run, sapphire crystal is awesome because you can actually wear the watch without worrying about chipping the edges.

I have not worried in 25 years, wearing the watch in all activities 24/7, and never damaged my acrylic.

padi56 · 27 June 2011, 01:56 AM

Quote:

Originally Posted by sherwin

But in the long run, sapphire crystal is awesome because you can actually wear the watch without worrying about chipping the edges.

Not true fact Sapphire although it resists scratches in does chip quite easily especially around the edges.While Acrylic does scratch but very easy to get scratches out and it very seldom chips.

fishguy83 · 22 July 2011, 02:30 AM

Quote:

Originally Posted by padi56

Not true fact Sapphire although it resists scratches in does chip quite easily especially around the edges.While Acrylic does scratch but very easy to get scratches out and it very seldom chips.

You are totally correct. Whoever said that sapphires crystals do not chip is factually incorrect. My GMT is a great example. The face is superb with no scratches, but along the edge there are two very small dings. So small, in fact, that I can't see them and can only feel them with my fingernails.

masterserg · 23 August 2011, 07:57 AM

Quote:

Originally Posted by padi56

Not true fact Sapphire although it resists scratches in does chip quite easily especially around the edges.While Acrylic does scratch but very easy to get scratches out and it very seldom chips.

Unfortunately, I can attest to this, not once but twice. I am happy that the crystal on my new Sub C does not protrude that much.

sherwin · 24 June 2011, 10:38 AM

I just use a fingernail to tap it a couple of times. if there is a light "ding" its acrylic. if it is a heavier "thud", its sapphire crystal. crystal has the same sound as tapping on glass.

ErikSzper · 11 September 2011, 12:51 AM

Try one of the options given above that can't hurt the piece!

Another easy way is to view it from the profile...the acrylic will bend the light and look 'thick' and domed, where as the sapphire is flat.

Cheers!

lida · 26 June 2011, 08:09 PM

you can user the lenz of your DJ scratch glass, if have trace, it is sapphire, else is acrylic!

jamesbondOO7 · 27 June 2011, 01:28 AM

I would not touch my forehead with sapphire. It would leave marks...

MonBK · 27 June 2011, 03:06 AM

Quote:

Originally Posted by jamesbondOO7

I would not touch my forehead with sapphire. It would leave marks...

Don't worry, they will go away the next time you wash your face.

jamesbondOO7 · 27 June 2011, 03:51 AM

Quote:

Originally Posted by MonBK

Don't worry, they will go away the next time you wash your face.

Funny.

chestercopperpot · 14 July 2011, 12:54 PM

hahah, this is hilarious

glocati · 22 July 2011, 03:59 PM

16013s have an acrylic cystal.

24 June 2011, 06:13 AM	#1
howieleem "TRF" Member Join Date: May 2011 Location: uk Watch: 16013 Datejust Posts: 39	How to tell if saphire or acrylic? How do i tell if its a saphire or acrylic on my 1986 16013 DJ?

24 June 2011, 07:35 AM	#15
learningtofly 2024 SubLV41 Pledge Member Join Date: Jun 2010 Real Name: Tony Location: London, England Watch: Hmmm... Posts: 2,483	Give it a whack on something hard - if it scratches, it's acrylic __________________ Tony

27 June 2011, 12:31 AM	#18
sherwin "TRF" Member Join Date: Nov 2007 Location: Perth/Singapore Posts: 1,764	But in the long run, sapphire crystal is awesome because you can actually wear the watch without worrying about chipping the edges. __________________ Want to Buy:SS GMT black;116509 WG Daytona Metrorite

24 June 2011, 10:38 AM	#23
sherwin "TRF" Member Join Date: Nov 2007 Location: Perth/Singapore Posts: 1,764	I just use a fingernail to tap it a couple of times. if there is a light "ding" its acrylic. if it is a heavier "thud", its sapphire crystal. crystal has the same sound as tapping on glass. __________________ Want to Buy:SS GMT black;116509 WG Daytona Metrorite

27 June 2011, 01:28 AM	#26
jamesbondOO7 "TRF" Member Join Date: Oct 2010 Real Name: BondJamesBond Location: The Algarve Watch: Rolex or nothing Posts: 4,073	I would not touch my forehead with sapphire. It would leave marks... __________________ ♛ 5-digit Rolex or nothing ♛

24 June 2011, 06:21 AM	#2
drtooth73 Banned Join Date: Feb 2009 Real Name: W. Stutman Location: Motor City Watch: TT GMT IIC Posts: 2,223	acrylic is very thick and can be polished, sapphire is virtually scratch proof,

24 June 2011, 06:35 AM	#3
jay_man2 "TRF" Member Join Date: May 2011 Real Name: Jay Location: Northern Virginia Watch: Rolex Posts: 2,490	I had my 16013 DJ appraised recently, and the appraiser indicated that it was an acrylic crystal. 9 series serial number from 1986, purchased new in 1987.

24 June 2011, 06:57 AM	#4
MonBK Banned Join Date: Nov 2010 Location: Kingstown Posts: 58,279	Here's a simple trick. Touch your forehead with the crystal. If it's cold to the touch it's sapphire, if it's warm it's acrylic.

24 June 2011, 07:22 AM	#14
watch watcher "TRF" Member Join Date: Mar 2011 Location: ME Watch: Vintages Posts: 565	Sapphire shows fingerprints, acrylic doesn't.

11 September 2011, 12:51 AM	#24
ErikSzper 2024 Pledge Member Join Date: Sep 2011 Real Name: Erik Szper Location: Baltimore Watch: PAM326 Posts: 24,468	Try one of the options given above that can't hurt the piece! Another easy way is to view it from the profile...the acrylic will bend the light and look 'thick' and domed, where as the sapphire is flat. Cheers!

26 June 2011, 08:09 PM	#25
lida "TRF" Member Join Date: Jun 2011 Location: china Posts: 5	you can user the lenz of your DJ scratch glass, if have trace, it is sapphire, else is acrylic!

14 July 2011, 12:54 PM	#29
chestercopperpot "TRF" Member Join Date: Dec 2010 Location: New York City Posts: 249	hahah, this is hilarious

22 July 2011, 03:59 PM	#30
glocati "TRF" Member Join Date: Oct 2007 Real Name: Greg Location: Portland, Oregon Watch: 1675/3+16013 Posts: 538	16013s have an acrylic cystal.

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