So I followed Mark course and I would like to use the ST3600 to build a custom watch.
I've already buy a case on the photo. but I've some questions:
What need to be the size of the dial when i measure inside the case there is multiple level each of them have different size like 33.61, 35.56, 36.51, 37.32 from bottom to top What need to be the size of the hands of if it matters at all. The case come without any casing ring or lung so what I'm supposed to use to secure the movement into the case ? Thanks
Hi, I hope you all are fine
Those days I found an old omega f300 cone case sleeping on the drawer polished as a mirror when I bough it, many years ago cheap as scrap.
I decided to give it a try and among other tasks, rescue it's finish, and discovered that it's impossible to do it by hand, each run marks his scratches in a different direction giving even worse impression than mirror polish, so decided to take the challenge of scratching it in a radial and homogeneous pattern.
I read somewhere a post about redoing an Omega cone surface, and found it really difficult, doing supports, regulators and so on, and requiring even a grinding machine, impossible and not to inspiring for me.
Saw even someone using a dremel that took the hell out of me.
Below it's the simple contraption that allowed to do it, maybe you can find it useful for your projects, it's cheap, easy to build and makes the redo a piece of cake.
All the secret is to guarantee that sanding paper (or whatever you use) attacks the surface always in the same "radial" direction, this is impossible if you grab the case or sand paper by hand, any minor deviation will shine as a photo flash ruining the look.
So to do it you may elaborate a complex rotating support, or take a simpler approach.
As the watch is round, almost any "support" that "fills" the case will allow to rotate it around that position keeping the angle and relative position of the case.
So with just a few sticks laying around I've been able to "build" a really simple "fill" to firmly support the case in a fixed position, allowing it to rotate freely but preventing any displacement up down, right or left, so keeping the case in the same relative angle no matter how much you rotate it.
The second challenge was to make a sanding "device" to scratch the cone wall without any lateral displacement, so, just up and down motion along the cone wall, with any lateral distraction.
Again an old lumber piece and a single carpenter clamp did the trick.
Below are a few photos of the job, cheap, easy and efficient, I hope you find it useful.
It was fun to repair a watch case with lumber, sand paper and carpenter tools, still thinking what use give to the hammer.
My apologies, but don't know how to lay the photos in their place
Ask if any doubt.
Cheers and take care
I recently acquired an Illinois pocket watch that appears to have a screw on front and back. I was able to unscrew the front with great effort. A lot of dirt and grime dropped out. I need to get the back off. There are no grab points so, I have tried a rubber ball and failed. If it was a bolt, I would use heat, but that’s not an option. I am afraid to use penetrating oil for fear of damaging the porcelain face. I am assuming that the watch is in the 100 year old range but won’t know until I get the serial number off the movement.
it is clear, the case has not been opened in a very long time.
What is the best way to open it?
I've got a Poljot de Luxe that I'm trying to work on. I can remove the case back and see the movement, but this looks to be a front loader.
There appears to be a thin bezel holding the acrylic crystal in place, but no place to insert a case knife or other tool. I don't want to damage the case fighting with it.
Here are some stock images, including one with the bezel/crystal removed. My watch appears to be identical to these.
Does anyone have experience working on these cases?
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