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vandoorn · 16 January 2020, 10:12 PM

Trying my luck on the Vintage Forum; any help as to what type of crystal my 7928 has? It doesn't feel like plexi (as my 79090 had) and scratches won't come out with Polywatch.

Thanks!

southtexas · 16 January 2020, 10:32 PM

It should be a T19 plexi crystal. Hard to tell from the one photo you posted.

Sent from my iPhone using Tapatalk

linesiders · 16 January 2020, 10:33 PM

Looks like a nice T19 but photo is terrible. Watch looks like it might be a very nice example, but lousy photos ; )

vandoorn · 16 January 2020, 11:37 PM

How about these?

linesiders · 17 January 2020, 12:00 AM

First shot of the second set is great - very nice watch ;) 1964-1965. The text print on the dial is more silver color than the tan of the photos, right?

As for the crystal, looks like a normal dome.

Watch phone photos are hard, best quick and dirty advice is to stack some books (or something) to have a firm stand / support 8-10 inches from watch. Use a soft prop to change angle of watch, keep phone in same place.

Also good is in shade, next to natural sunlight

Kingface66 · 17 January 2020, 12:41 AM

Also, if (like the second photo in the second set) it appears out of focus on your phone (especially if you zoom in on it) don’t bother posting it. Just take another photo of it in-focus.
...with more ambient light, if you can. Like...outside.

Dan S · 17 January 2020, 04:08 AM

Regardless of the photo quality, it's clearly an acrylic crystal, which was the OP's question. If the scratches are too deep, Polywatch alone will not be enough.

vandoorn · 17 January 2020, 04:28 AM

Many thanks for the responses! I promise I will work on my photography skills, but good to hear it is an acrylic crystal. What threw me off was the difference with my 79090 Sub or Heuer '64 re-edition which have a Plexi feel to them when tapped on. The crystal on my 7928 feels almost glass like when tapped and I was surprised that polywatch didn't remove the light surface marks (usually get those from brushing against a door frame:). Guess these blemished add character to the watch as it gets (even) older. It's from 1964. I bought a spare FEF390 movement long time ago, but don't have a spare Crystal and perhaps since this one is original to the watch, I am certainly not going to have it replaced or worked on for a few scuffs. Thanks again for the feedback.

16 January 2020, 10:12 PM	#1
vandoorn "TRF" Member Join Date: Dec 2008 Location: Washington DC Posts: 54	7928 Trying my luck on the Vintage Forum; any help as to what type of crystal my 7928 has? It doesn't feel like plexi (as my 79090 had) and scratches won't come out with Polywatch. Thanks!

16 January 2020, 10:32 PM	#2
southtexas 2024 ROLEX SUBMARINER 41 Pledge Member Join Date: May 2011 Location: Great State of TX Posts: 5,764	It should be a T19 plexi crystal. Hard to tell from the one photo you posted. Sent from my iPhone using Tapatalk __________________ Forty six & 2 are just ahead of me. Follow me on Instagram @ccrolex

16 January 2020, 10:33 PM	#3
linesiders 2024 SubLV41 Pledge Member Join Date: Dec 2011 Location: RedSox Nation Watch: U Talkn Bout Wilis Posts: 5,503	Looks like a nice T19 but photo is terrible. Watch looks like it might be a very nice example, but lousy photos ; ) __________________ I'm a sailor peg. And I've lost my leg. Climbing up the top sails. I've lost my leg!

17 January 2020, 12:00 AM	#5
linesiders 2024 SubLV41 Pledge Member Join Date: Dec 2011 Location: RedSox Nation Watch: U Talkn Bout Wilis Posts: 5,503	First shot of the second set is great - very nice watch ;) 1964-1965. The text print on the dial is more silver color than the tan of the photos, right? As for the crystal, looks like a normal dome. Watch phone photos are hard, best quick and dirty advice is to stack some books (or something) to have a firm stand / support 8-10 inches from watch. Use a soft prop to change angle of watch, keep phone in same place. Also good is in shade, next to natural sunlight __________________ I'm a sailor peg. And I've lost my leg. Climbing up the top sails. I've lost my leg!

17 January 2020, 04:08 AM	#7
Dan S 2024 Pledge Member Join Date: Oct 2018 Location: Colorado, USA Posts: 6,295	Regardless of the photo quality, it's clearly an acrylic crystal, which was the OP's question. If the scratches are too deep, Polywatch alone will not be enough. __________________ @oldwatchdan on IG

16 January 2020, 11:37 PM	#4
vandoorn "TRF" Member Join Date: Dec 2008 Location: Washington DC Posts: 54	How about these?

17 January 2020, 12:41 AM	#6
Kingface66 2024 Pledge Member Join Date: Aug 2013 Location: The Empire State Watch: Many Posts: 3,462	Also, if (like the second photo in the second set) it appears out of focus on your phone (especially if you zoom in on it) don’t bother posting it. Just take another photo of it in-focus. ...with more ambient light, if you can. Like...outside.

17 January 2020, 04:28 AM	#8
vandoorn "TRF" Member Join Date: Dec 2008 Location: Washington DC Posts: 54	Many thanks for the responses! I promise I will work on my photography skills, but good to hear it is an acrylic crystal. What threw me off was the difference with my 79090 Sub or Heuer '64 re-edition which have a Plexi feel to them when tapped on. The crystal on my 7928 feels almost glass like when tapped and I was surprised that polywatch didn't remove the light surface marks (usually get those from brushing against a door frame:). Guess these blemished add character to the watch as it gets (even) older. It's from 1964. I bought a spare FEF390 movement long time ago, but don't have a spare Crystal and perhaps since this one is original to the watch, I am certainly not going to have it replaced or worked on for a few scuffs. Thanks again for the feedback.

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