Matt_Bored_O asked if I could show :
How to remove the chrome "skin" from a Vostok crown.
How I added a little colour to the brass.
Firstly, If I recall correctly, it was onastar who first mentioned the process, so the credit is due to him entirely.
That said, this is how I do it.
Here are the four crowns, commonly available.
It is the third one from the left that we are dealing with.
On the right hand one in this pic, you can see that the chrome skin is crimped over the back of the crown.
It is a five minute job to remove it, using a craft knife, or a scaple, etc.
I use a pin vice to hold the stem. The crown will still rotate of course, but I find it easier to hold.
Pinching the crown to prevent it turning, use the blade to score through the plated skin in one of the knurl grooves.
Depending on how sharp your blade is, six to ten scores with cut through it.
Repeat the process on the opposite side of the crown. The edge will now lift up, with a little help from the point of the blade.
Do the same on the opposite side, and the skin will pull off, as here, along with some others.
The crown that you now have is brass, which a little hand buffing will expose.
Should you wish to add a little "patina", this is what I do.
You will need Gun Blue, de-greaser, and a cotton bud.
Clean the crown with de-greaser, using a cotton bud, then apply the bluing solution with a clean bud. Colour will deepen as more coats are applied.
This is with two coats.
Buffing, or general usage, will expose the brass on the highpoints.
It is the same process that I used on this.