Jump to content
Len33

Crystal press advise needed

Recommended Posts

Thanks oldhippy, this is my "Jack the Gripper" in the photo - can I use this shape of "fingers" for real glass as well? When tightened too much, it grips so hard that it punches holes into the side of plastic crystals :)

Can I use this tool for domed real glasses?

 

PS Yes, I have a useless chinese as well, it has lasted for 10 watches, now every crystal slips out of the fingers. 

 

 

 

 

jack the gripper.jpg

Edited by rappeleur

Share this post


Link to post
Share on other sites

So... There is no way putting my glasses with my tool into place. The mounting device is too high, the glass doesn't stand high enough for gripping. 

But even when picked up from a flat surface, the tool always slips from the glass. The glass has a tilted border (see photos). 

 

Wrong tool / wrong glass /wrong technique?

20180217_214409-1.jpg

20180217_214432-1.jpg

Share this post


Link to post
Share on other sites

Think there is a misunderstanding of the tool required here. Firstly "Mark has done some great video's on the removal and fitting of various crystals. Suggest you look them up on YouTube.
It's inappropriate to use an arcrylic crystal lifter on mineral or sapphire crystals.
Why have you only flat dyes ? Even inexpensive case and glass press tools come with a selection of dyes, including concave dyes suitable for domed crystals. The problem today will be obtaining jumbo dyes for the modern larger watch but they do come up for sale on various sites.

Sent from my SM-T585 using Tapatalk

Share this post


Link to post
Share on other sites

Yes, this was just what I was thinking! I only have flat dies because I have not bought a better set yet :) hence my question, which one to buy. Perhaps I misinterpreted the above suggestions for my crystal-tool. 

I will have a deeper look into techniques and dies/tools.

 

Thanks so far!

Share this post


Link to post
Share on other sites

old hippy is right, but for clarification high dome acrylics = crystal lift, low domes = press, but the method is different from pressing a mineral/sapphire/tension ring, with a low dome acrylic you basically have to use the dies to make the crystal curl in on itself slightly, then slip the case/bezel into position and then release the pressure so that it locks in place to the bezel/case. It's probably been properly demonstrated or explained somewhere around the forum before, but i could just imagine someone trying to puzzle that out from scratch.

Share this post


Link to post
Share on other sites

I'm a very new beginner hobbyist.  Would this low cost Chinese tool work for removing/installing crystals and pressing on case backs?  Anyone have one?

Thank you

 

 

 

3-10-2018 8-43-21 AM.jpg

Share this post


Link to post
Share on other sites

I would say buy the blue one that actually has the shape of a press. This one can work but if you press too much, since it's a cheap one, it'll break and you might just break your watch as well.

Stick to the blue ones that cost 15$ or whatever... They're not as good as the original ones in that you might get one that is slightly misaligned (from what I could read in some comment) but it'll be better than this one.

Share this post


Link to post
Share on other sites
4 hours ago, Lc130 said:

I'm a very new beginner hobbyist.  Would this low cost Chinese tool work for removing/installing crystals and pressing on case backs?  

i do not recommend this type because the force is not between pillars and it will lose plane under medium pressure. If you want a screw type make sure that isn't so.

Share this post


Link to post
Share on other sites
7 minutes ago, jdm said:

i do not recommend this type because the force is not between pillars and it will lose plane under medium pressure. If you want a screw type make sure that isn't so.

I purchase a cheap one ...It did work fine the one time I used it ..I'll enclosed a picture at bottom ...Which one would be a recommend unit if not the one I already have.

Watch press.jpg

Share this post


Link to post
Share on other sites
2 minutes ago, adiorio110 said:

I purchase a cheap one ...It did work fine the one time I used it ..I'll enclosed a picture at bottom ...Which one would be a recommend unit if not the one I already have.

That is fine because the cast construction is not subject to distortion, and being of the lever type it allows better feeling.

Often what makes the difference is having the correct dies in terms of shape, size and material.

Share this post


Link to post
Share on other sites
That is fine because the cast construction is not subject to distortion, and being of the lever type it allows better feeling.
Often what makes the difference is having the correct dies in terms of shape, size and material.
Thanks...there is one thing I don't like..depending on the watch if I screw the dies all the way in the dies do not reach ..I put a nut and washer on to extend reach but haven't tried it yet

Sent from my SM-G955U1 using Tapatalk

Share this post


Link to post
Share on other sites

This is one type I had. https://www.cousinsuk.com/category/press-dies-robur   expensive used for fitting tension ring glasses

As near as I can find of another type I had for tension ring and flat

This very good glass lift and fitting tool for high dome glasses

Beware of cheap Chinese types. You know they won’t last because of the price. Good tools will last you a lifetime.  

 

 

 

 

Watch-Press-Tool-5500-A-Watch-Crystal-Press-with-25-Tapered-Dies.jpg_640x640.jpg

59.102.1__66376.1477005695.500.750.jpg

Share this post


Link to post
Share on other sites
2 hours ago, oldhippy said:

Beware of cheap Chinese types. You know they won’t last because of the price. Good tools will last you a lifetime.  

We have a lot of people here using hand held and bench Chinese presses. No reports of breakage or other problems, generally these are great for beginners. Isn't always necessary to spend a lot on tools. I have an Anchor copy of MKS screw type, works good and has a sturdy build, link is a previous posting in this thread. 

For the ease of finding info I have merged various threads in a pinned topic.

Some generic postings moved to another thread. Please stay on topic: Crystal press advice

 

Share this post


Link to post
Share on other sites

Has anyone ever used a case press like this one:

https://www.ebay.com/itm/GF8721-Snap-Back-Watch-Back-Case-Press-Spiral-Type-Closer-Tool/142877470395?hash=item2144292ebb:g:EwkAAOSwczhbU1CG

It looks reals sturdy from the pictures, but i would like to get someone's first hand experience.

Share this post


Link to post
Share on other sites

My experience with the cheap Chinese crystal presses is very poor. I ended up buying a Bergeon No 5500 and I'm remarkably satisfied with it. I recorded a video of the very first time I used it and you can see it via this post.

Share this post


Link to post
Share on other sites
36 minutes ago, DavidMasters said:

I have the following one at link, or it's similar—lots of knock-offs from China. It beats spending hundreds if this is a hobby like it is for me.

This is a cheap alternative that works very well.

I don't recommend that one, because the pressing force is not in between the pillars, so it tends to flex. Better to have cast strong body as others that were featured before.

Share this post


Link to post
Share on other sites
On 2/17/2018 at 4:05 PM, rappeleur said:

Thanks oldhippy, this is my "Jack the Gripper" in the photo - can I use this shape of "fingers" for real glass as well? When tightened too much, it grips so hard that it punches holes into the side of plastic crystals :)

Can I use this tool for domed real glasses?

 

PS Yes, I have a useless chinese as well, it has lasted for 10 watches, now every crystal slips out of the fingers. 

 

 

 

 

jack the gripper.jpg

Bergeon or other guality crystal lift do not scratch ths crystal.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

  • Recently Browsing

    No registered users viewing this page.

  • Topics

  • Posts

    • Hi Everyone, thanks in advance I have Caravelle N8 mechanical watch, 7 jewels, the problem it has is that its second hand kicks back couple of times during 1 minute which is causing it to fall behind in time. What can be the underlying cause ?
    • I've had similar behavior when the cannon pinion is really loose, where any jolt to the watch would cause the minute hand to move around.  The watch would loose or gain a lot of time, but always look good on the timegrapher.  The same thing goes for a loose minute hand.  If you set the time to midnight are the minute and hour hands stilled aligned?
    • Something else to remember here, here in America we have a culture of anti-monopoly. Much of the rest of the world has not established any infrastructure to combat the power they create for themselves. What Switzerland and ETA did was essentially block all competition. If you want something fixed you can only ever go to authorized service centers which ETA/ swatch and the Swiss government will have full control over. One of the largest monopolies in the world is a company we should all be somewhat familiar with, Debeers. Yes, The Diamond People, Debeers! They own every aspect of the diamond industry except one. One that never sold out to them and one that Debeers is force to bend to, to get what they need from them. This one hold out is where you get your "Hand Cut" diamonds from. These are the Jewish diamond cutters located in several ares including New York City, USA, Antwerp, Belgium and a couple other locations. To the best of my knowledge Debeers is not allowed to conduct any business here in america because of our strict anti-trust (anti-monopoly) laws. However, they are forced to use representatives to deal with the diamond cutters in New York. Just over the boarder in Canada these laws do not exist and Debeers has massive operations in full swing up in the arctic circle. Has anyone watched the show on the Discovery channel, "Ice Road Truckers"? They were basically the delivery service for the Debeers mines. Sadly there is not a thing Cousins or anyone can do about this. Because the Swiss government is in bed with the Swatch group, they can make any law they like and exclude everyone as they have here. This is a shame for small business watch repairmen, hobbyists and large distributors like cousins. I hope that The Swatch Group notices a decline in their sales because of this decision, but I seriously doubt it. One final thought, Debeers has had some pretty serious competition recently in the area of Synthetic diamonds. The Russians have developed and refined the process of manufacturing synthetic to the point where they are almost completely indistinguishable from the natural diamonds Debeers peddles. Debeers has taken to using lasers to micro-etch serial numbers and company logos on every diamond over a certain carat weight. And, as I read it, Debeers recently began manufacturing and selling synthetic diamonds because it couldn't shut them down. A new version of "If you can't beat them, join them", lol.
×
×
  • Create New...