Jump to content

Casio Mw-31 "glass" Cleaning


tcanor

Recommended Posts

Dear All,

 

Now comes the second problem :)

The attached material hit the internal part of the watch's glass (which is plastic)

The glass is now not clear (maybe it can be seen in the attached photo). I tired all my best but I was not able to clean it and it is still vage / daze.

Any recommendation how to clean it?

Many thanks for your helpful advice.

post-679-0-62493100-1423475344_thumb.jpg

post-679-0-89847100-1423475347_thumb.jpg

Link to comment
Share on other sites

Oh dear, what a mess. There are normally two options if the crystal is marked, replace or polish. In your case it looks like replacement is the way to go.

If the damage is restricted to the outside surface and is bloomed and not melted, you could still try polishing it as you have nothing to lose. This involves rubbing it down evenly with wet or dry paper used by paint spray shops. In your case I would start with 600 grit to remove all the damage. Once that is achieved, use 1000 grit to obtain a blemish free semi Matt surface that looks clear when you wet the crystal. Then polish it with either, fine rubbing compound, Brasso or in my case Solvol Autosol metal polish. This will give you a near perfect finish. Finally buff it applying a fair bit of pressure with a propriotary "silver polishing cloth" to give the as new result.

I polish most of my crystals this way by hand, it does take time, but it's worth it in the end. Remember if you go this route not to catch the edge of the case with the wet or dry or it will make a right mess.

Link to comment
Share on other sites

That looks like a chemical reaction with the plastic lens.  I have no idea what cyberslov is, but I'd keep it well away from any watch in the future.  Good old "Sugar Soap" is the best way to clean bands and cases, and glass.

 

I would recommend seeing your local Casio Dealer.  Complete case replacements aren't that expensive.

Casio price their parts quite reasonably, I think you'll be pleasantly surprised.

Edited by Lawson
Link to comment
Share on other sites

I second Geo's crystal replacement that shouldn't be either expensive or difficult since it is a round crystal. You may be able to upgrade to mineral glass which I personally prefer and think is more durable. I have never contacted Casio but if the option is available to you, Lawson's suggestion is probably the best to keep the watch as original as possible.

 

Cheers,

 

Bob

Link to comment
Share on other sites

Have you tried toothpaste ?  Some toothpaste that is a little more grit in could work . Do you have something called autosol ? That is great for polishing plastic crystals .

 

attachicon.gifbiild11_725.jpg

It's my favourite polish Rogart, I mentioned it in my post above. Thanks for putting up the picture! :)

  • Like 1
Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • The best advice I received when starting watch repair was don’t force anything.. screws, lifting bridges etc etc.. The other vital skill is using tweezers without losing the part., for me never hold a part tightly and the tweezers must be dressed.
    • Hi can someone tell me where a can buy this chart for breguet hairspring frequency?
    • OK Rich, may be You are just a little bit more worried than really needed. Who am I to say, jus a newbie here but... Such a big forum will not collapse in any case, exept if the people loose their interest to participate. If something happens to the owner,  then senior members will be able to handle the forum. Let me show an example where one of the moderators of the russian forum (thow He was not russian), a man of great knowlage abd big heart, passed away in 2023. Thow His personal site is still working, the russians coppied the whole site to safe place here. I mean, all depends on the people and if they need to do something, they will find the way. Actually, the forum is place where people can meet and share. As a final measure, people can share their phone numbers and use Viber to comunicate, at least people who are interested to keep connection between each other.
    • Since I couldn't slow the machine down enough for my liking, I started off slowly with a higher grit.  I began (very lightly) with 1000 grit paper: https://www.amazon.com/gp/product/B07DTJBND1/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1 Finished with 3000 grit: https://www.amazon.com/gp/product/B07DTFSMT1/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1 Afterwards I went on to polish with traditional methods using felt & cotton wheels, with different grades of Dialux. Hope this helps.
    • Ok so there is barely any response happening . After this last attempt i think I'm just going to give up on it because very few seem genuinely interested or even bothered or worried what may happen in the future. ( if someone can set me straight I'd love to hear it ) I would think anyone into watches has heard of Roland Ranfft, how they grew to love and depend upon his site for detailed information. And not just that, he also had a view about Ebay and everyone that visited Roland's site knew exactly what he thought about Ebay, Roland's site also had a secondhand watch sale side to it.  If anyone here could have done anything to preserve his site and keep it exactly the way it was.........Would you have done something to make that happen ?  Its been pointed out to me but not in so many words  that I'm probably coming across as an insensitive p.rick, truly I'm sorry about that, i say it as it is but no malice is intended and yes clearly I'm putting my forum membership on the line here. I'll happily shut up about it now, I've done all i can.
×
×
  • Create New...