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FOUND WTB - crystal for 501 - 296 [message #18165] Fri, 31 March 2023 20:42 Go to next message
Jenneke is currently offline  Jenneke
Messages: 1832
Registered: May 2013
Location: Netherlands
Gruen Authority
This boy needs a glass or plastic crystal to become wearable again.

/vgforum/index.php?t=getfile&id=10447&private=0

From the Gruen material catalogue I know I need this one:
/vgforum/index.php?t=getfile&id=10448&private=0

Not that it helps in the search.

If anyone has one (scratches no problem) or… knows what GS model I need, please let me know.


You can only waste time if you forget to enjoy it - Loesje

[Updated on: Sun, 14 May 2023 19:18]

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Re: WTB - crystal for 501 - 296 [message #18169 is a reply to message #18165] Sat, 01 April 2023 22:08 Go to previous messageGo to next message
Gary
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Registered: May 2013
Location: Left Coast
Gruen Authority
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That's a odd one, my BB and G-S catalogs shows no cross reference for the 500/501. Where is Darren when you need him. Sad

If all fails I can try to make you one by hand.
Re: WTB - crystal for 501 - 296 [message #18170 is a reply to message #18169] Sun, 02 April 2023 08:25 Go to previous messageGo to next message
Barney Green
Messages: 1714
Registered: February 2014
Location: Wolfsburg, Germany
Gruen Authority
Hi Jenneke,

can you please measure the crystal dimensions? The GS and SUC catalogs show several sizes for "Masters" which is not surprising given the commonness of this name at Gruen. I still have hopes that MT377 could be correct although the envelope of my crystal has "Curvex Master" printed on it.

Barney


Gruen, Gruen, Gruen ist alles was ich habe... Gruen, Gruen, Gruen is all I have...(German folklore song)
Re: WTB - crystal for 501 - 296 [message #18171 is a reply to message #18170] Sun, 02 April 2023 09:37 Go to previous messageGo to next message
Jenneke is currently offline  Jenneke
Messages: 1832
Registered: May 2013
Location: Netherlands
Gruen Authority
Barney Green wrote on Sun, 02 April 2023 10:25
can you please measure the crystal dimensions?
I am not a star measuring with my digital caliper inside the case from the supreme. Length is 28,79 or a little smaller. Width around the crown 15,4 -15,49. And width at the straight part at the end 13,69.

I will have a second go on the crystal from the master. Might give more accurate results. Rolling Eyes

Quote:
the GS and SUC catalogs show several sizes for "Masters"
Are there online sources that can be used for these catalogues that you know off? I’ve tried the GS page but the serach function didnt help:
https://www.gssupplies.com/crystal-catalogs

I see over here the master mt377 you mention. But no dimensions.
https://static1.squarespace.com/static/5f0214e31caefb1314239 7d9/t/5f3f17f61aac2871be0650e7/1597970434242/1943+Catalog+Cr ystal+Cross-Reference+Lists.pdf

GaryM

If all fails I can try to make you one by hand.
What would one take as starting material?


You can only waste time if you forget to enjoy it - Loesje

[Updated on: Sun, 02 April 2023 09:38]

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Re: WTB - crystal for 501 - 296 [message #18172 is a reply to message #18171] Sun, 02 April 2023 09:48 Go to previous messageGo to next message
Barney Green
Messages: 1714
Registered: February 2014
Location: Wolfsburg, Germany
Gruen Authority
The MT377 crystal is 28.7x15.5. This would be at least very close, so I believe it is a fit and the print on the envelope is wrong.

Gruen, Gruen, Gruen ist alles was ich habe... Gruen, Gruen, Gruen is all I have...(German folklore song)
Re: WTB - crystal for 501 - 296 [message #18173 is a reply to message #18172] Sun, 02 April 2023 11:26 Go to previous messageGo to next message
Jenneke is currently offline  Jenneke
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Great! That sounds close enough. Going to look for the MT377!

You can only waste time if you forget to enjoy it - Loesje
Re: WTB - crystal for 501 - 296 [message #18175 is a reply to message #18171] Sun, 02 April 2023 16:07 Go to previous messageGo to next message
Gary
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Registered: May 2013
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Jenneke wrote on Sun, 02 April 2023 09:37

GaryM


If all fails I can try to make you one by hand.
What would one take as starting material?
Dollar store reading glasses have worked well (plastic thin lenses), I've also used tape cassette cases but they can be pretty scratched up.I use a light bulb and re-wrok station to imprint the bezel outline and the form the curve of the new crystal.
Re: WTB - crystal for 501 - 296 [message #18176 is a reply to message #18175] Sun, 02 April 2023 17:33 Go to previous messageGo to next message
Jenneke is currently offline  Jenneke
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Registered: May 2013
Location: Netherlands
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A normal light bulb is getting hot enough to “melt” that plastic? Interesting.

Sounds fun to try.


You can only waste time if you forget to enjoy it - Loesje
Re: WTB - crystal for 501 - 296 [message #18177 is a reply to message #18176] Sun, 02 April 2023 17:38 Go to previous messageGo to next message
Gary
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Registered: May 2013
Location: Left Coast
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Jenneke wrote on Sun, 02 April 2023 17:33
A normal light bulb is getting hot enough to “melt” that plastic? Interesting.

Sounds fun to try.
No, the light bulb is only used to form the shape of the crystal, I use a rework station for the heat, a hairdryer can be used in a pinch.

Here is my rework station.

/vgforum/index.php?t=getfile&id=10450&private=0
Re: WTB - crystal for 501 - 296 [message #18206 is a reply to message #18177] Sun, 16 April 2023 23:15 Go to previous messageGo to next message
JackW is currently offline  JackW
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more pictures of you making a crystal, please. Rather interested.

All I know is based on hard work & writing by others. I can only aspire to augment this body of knowledge. If I am wrong it is because of my own failings. -me

"If I have seen farther it is by standing on the shoulders of giants." - Newton

[Updated on: Sun, 16 April 2023 23:16]

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Re: WTB - crystal for 501 - 296 [message #18212 is a reply to message #18206] Tue, 18 April 2023 18:38 Go to previous messageGo to next message
Gary
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Registered: May 2013
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JackW wrote on Sun, 16 April 2023 23:15
more pictures of you making a crystal, please. Rather interested.
With two hands involved in the making its hard to get pictures but we'll try next time I make one.

Jenneke and I can start a new side business J&G- Custom Watch Straps and Crystals...Laughing
Re: WTB - crystal for 501 - 296 [message #18217 is a reply to message #18212] Wed, 19 April 2023 08:46 Go to previous messageGo to next message
Jenneke is currently offline  Jenneke
Messages: 1832
Registered: May 2013
Location: Netherlands
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My side off the business would not be profitable. Laughing Takes a lot of time to make them (and streamlining would make it work). But can recommend it, it is fun.

You can only waste time if you forget to enjoy it - Loesje
Re: WTB - crystal for 501 - 296 [message #18247 is a reply to message #18217] Tue, 02 May 2023 16:18 Go to previous messageGo to next message
Jenneke is currently offline  Jenneke
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Location: Netherlands
Gruen Authority
Crystal arived! The quality control wasn’t striving to Gruens snap-fit.  :roll:  Upper left corner needs to be filed down.

/vgforum/index.php?t=getfile&id=10496&private=0
/vgforum/index.php?t=getfile&id=10497&private=0


You can only waste time if you forget to enjoy it - Loesje
Re: WTB - crystal for 501 - 296 [message #18296 is a reply to message #18247] Sun, 14 May 2023 19:21 Go to previous messageGo to next message
Jenneke is currently offline  Jenneke
Messages: 1832
Registered: May 2013
Location: Netherlands
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Not only the upper left needed filing. This was definitely not my favourite job.

You can only waste time if you forget to enjoy it - Loesje
Re: WTB - crystal for 501 - 296 [message #18352 is a reply to message #18296] Mon, 29 May 2023 11:40 Go to previous messageGo to next message
veritas123 is currently offline  veritas123
Messages: 19
Registered: February 2015
Location: Raleigh,NC
Gruen Apprentice
The correct crystal for this watch is:

WC  2MC287
Perfit  MB287/1
BB  MT2875/155
Fulton M2-287A

IN GLASS

I have a very large inventory  ( of this one too ) , but I'll admit shipping overseas is a problem. I have not found a REASONABLE shipper service . I believe the last order to UK was $18 shipping alone.
I have never NOT been able to supply a crystal. I specialize in GLASS but I do have a large inventory of GS as well. Not many of the " P " like the subject of this thread. Not my favorite crystal material. Too much distortion .
Re: WTB - crystal for 501 - 296 [message #18353 is a reply to message #18352] Mon, 29 May 2023 11:52 Go to previous messageGo to next message
veritas123 is currently offline  veritas123
Messages: 19
Registered: February 2015
Location: Raleigh,NC
Gruen Apprentice
/vgforum/index.php?t=getfile&id=10536&private=0
/vgforum/index.php?t=getfile&id=10537&private=0
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[Updated on: Mon, 29 May 2023 12:47] by Moderator

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Re: WTB - crystal for 501 - 296 [message #18354 is a reply to message #18353] Mon, 29 May 2023 13:04 Go to previous messageGo to next message
Jenneke is currently offline  Jenneke
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Registered: May 2013
Location: Netherlands
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Good to know you have crystals!

Yeah, shipping small light packages from the US got expensive. Tax will be added too…
Only other option is as a “letter” in a normal envelop in a card. Have had watches sent to me in that way. Not insured of course.


You can only waste time if you forget to enjoy it - Loesje
Re: WTB - crystal for 501 - 296 [message #18360 is a reply to message #18354] Thu, 01 June 2023 23:37 Go to previous message
JackW is currently offline  JackW
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Kurt is my main and best sources for crystals.

All I know is based on hard work & writing by others. I can only aspire to augment this body of knowledge. If I am wrong it is because of my own failings. -me

"If I have seen farther it is by standing on the shoulders of giants." - Newton
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