Sorry ... I've managed to upload images multiple times; asking for advice on how to edit the album so you don't have to suffer the same picture more than once...
This is my attempt at taking an MST-522 movement and with disparate parts ... make this into a watch. I've included hands I was debating using before settling on the set I thought looked best.
This is not meant to be an Omega anything! I just liked the blue dial that happens to have 'Omega' on it... and then thought it would look good with a blue case so then of course decided on a blue strap too! The watch has been going strong for the last few weeks since I cleaned and fixed it and keeps good time.
I am VERY new at all this though and still learning a lot!
Part on my new collection of approx. 15 movements which I bought on eBay two weeks ago.
I've selected this Avia vintage movement to test my new tools and knowledge gained from Youtube videos and books.
Looking into my bin of movements i noticed one still trying desperately to move. Looking a little rusted and worse for wear was a silvered dial Cupillard 233 movement ( 1935 ), no hands, poor dial, and a movement barely alive.
Normally i would not have bothered but i figured wth lets see if she can run well again
With some TLC and rust removed the movement swings into action with a beat error of 0.1ms no less and within 60 seconds a day, not bad for 85 year old scrapy rust bucket.
New original Cupillard hour & minute hands fitted ( yes i have some old stock ha ha) and a dial thats looking half decent now.
When i find time i might make a little case for her, and maybe even a strap if shes good
I use a GRS power hone to sharpen my gravers. Haven't tried tungsten. I usually use carbide or hard steel. But it all depends on the stock. There seems to be a divergence of opinion on how hard (temper) a balance staff should be. Trying to re-pivot a broken staff suggests that, most of the time, the steel is pretty hard, so you need correspondingly hard gravers.
Dont have much experience yet but it seems to be an excellent stuff. It is however really fragile! I dont know how it is called when the working piece catches the graver and grabbing from my hand, the cutting edge chips. It chips also if the graver slips from the piece. So great care must be taken to avoid hard pushing and one has to concentrate on the angles at any times. For this the graver must be really-really sharp. Sharpening on the contrarily is a real headache. Dean DK has a great video how to do it. My method is however different and maybe i will show it next time.
One also need a square graver to be able to maintain the same angle every time. Sadly, i have only this big graver in square, the other tungstens are round.
I plan to buy a smaller square (2.1mm) from GRS tools. It costs 13 CHF shipped to our country.
But this weekend i will make another attempt to turn this balance staff finally This is a friction fit balance so no need to make an undercut in the balance shoulder for which i would need another graver grinded with smaller angle.
Beautifully sharp graver. I always struggle with getting those straight lines when sharpening.
How well does Tungsten work? It's never occurred to me to use such a graver but Tungsten is hard as hell and holds up under heat. Are they a pain to maintain?