Ballance was broken, so had to replace that. Crystal from another vostok too. Hacking works well. Could use an even better crystal, but that will do for now.
Nice strap too, they really look great together !
I bought this vintage Poljot as it looked all authentic, including the crown. Well, also it was quite cheap.
The back was difficult to take off, and there was green-blue oxidation at the stem area that had almost fused the back to the case. In my book this is a good thing, as it means no intervention had taken place recently. The dial took some work, but I'm really happy with it. The nicotine yellow became white, the green at 3 also behaved well. No visible loss of print.
Now the real reason I bought it
1944-1969, 25 years from 9th of September.
The day the communist party took over, and Bulgaria was a kingdom no more. It became the People's Republic of Bulgaria.
I consider dealing with the green stuff to be one of my biggest restoration successes. The rust remover liquid (phosphoric acid) I use does miracles with it. The green spot just boils up and dissapears. What's left is much easier to clean. I'm thankful the print behind the date window survived the chenical reaction.
I will also share an observation about the crown of this watch. Maybe some of you are familiar with it, but I noticed it for the first time.
It looks quite normal at first glance
but it is actually made from three parts, with a spring in the middle.
Some day I may check my watches to look for another one. Anyone seen that before?
My favourite cleaning liquid is a cheap rust transforming liquid I get from my local store. It's green in colour, and contains an active ingredient phosphoric acid 25%-35%. It deals well with accumulated old oxidations, but not too agressive to instantly wipe printing and paint. Less aggressive than lemon juice even. It really is my best discovery related to my restoration hobby. And a bottle of it costs less than a dollar. I've disscussed it with a lot of forum friends around the world, and it seems this particular stuff is only produced locally, as I haven't found an adequate alternative outside Bulgaria. Which puzzles me really.
I've developed a technique to applying it on dials, based on many experiments, but generally it works better on chemmical level (I apply, let it work, and soak it out), than mechanical (apply, then whipe the surface with it). Well, I might do some gentle wiping if I get the feel that the dial will take it.
If I need to clean an important dial, I find a cheap wasted one, just to practice on it. Then I transfer the experience on the important one.
I have no experience on Cardi-vostoks, but they are modern watches, and a white dial is always difficult to clean. It depends on the paints and laqueurs osed to produce it. It may well be impossible.
The vintage soviets are very good to clean, as the paints used are quite tough, and they take cleaning pretty well. A damaged modern white dial may be beyond repair, though.
I wish I could be more helpful.
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