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Here is my YouTube video Sent from my iPhone using Tapatalk Pro

So it started with the purchase of this Hamilton 912. It had a loose balance and upon examination one of the pivots was broken. So off I went to eBay to order a 3050 balance staff. Three came in the mail. I started by removing the hairspring from the balance and then removed the roller plate with Impulse Jewel and safe roller. I then got out my roller remover and punched out the roller and safety roller. Then I took the staff and balance and fit the balance and staff in my Staking set; flat arms on the balance flat against the Staking tools plate. I then got out my NEW staff remover. I then made a YouTube on how to use the tool. After I punched out the old stake I staked in a new one Did a good job. The next step was to put the double rollers back. That is when I noticed that the roller jewel was loose. I got out my combination tools and shellacked the jewel and tested that it was now in good. I then staked in the rollers and moved on the put the hairspring back on. I did so and noticed that the collet was cracked. I had another old Hamilton movement and started farting around with the two hairsprings. Need to use the older one so I cleaned in and installed in and put the balance back in. Now the fun started. When I tightened down the balance cock the bottom pivot of the balance staff was too big ( my mistake) and it cracked the lower jewel. So I went into my collection of jewels and found and Illinois lower balance jewel that was the right hole size and also fit the opening. I installed it oiled in and screwed on the cap jewel. Reinstalled the balance and had to take it off again and take off the hairspring and straighten it a bit as it was touching the balance arm. So once I had in all in place I noticed that the balance was not down far enough to allow the upper pivot to extend into the jewel hole. So I took a slice of watch paper and wedged it into the back of the balance. Finally that did it and with a little work in the Banking Pins I was able to get a beat. About 200degree turn is all I could get, but I had no energy left to try and get more. A new crystal is now on order and the watch works fine. What a day.Paper jammed in.Happy Sent from my iPhone using Tapatalk Pro

Guys, I would appreciate if you could translate your post into English before posting. It allows others to appreciate what is being discussed. Thanks Geo!

Hello, I'm really so happy, i have waited a couple of week before ordering all the necessary stuff, but now i have it Now i can try on my 2 HMC mechanical watches and after on Seiko5. Do you have tips for buying some training cheap watches ? Thanks, Julien.

I have found the parts, luckily in Europe so I don't have import duty to contend with I have been checking the service guide PDF, I see what is meant by setting up, I am excited by that, it looks like a good challenge I believe its these parts I will post images - maybe a walkthrough, when i do it

Hi I use the Swiss style, bought from CousinsUK and I am very pleased with it. It was delivered looking slightly different to the pictures on the cousins website, but does the job just as well. the cups are very hard which is definitely an advantage over plastic. the cups are fixed with double sided tape on the stand, so once you remove the cups it is best to replace the tape so the cups are fixed properly (i use dial adhesive spots) Picture if that helps...

Ah yes, good catch. It looks like the sliding gear changes from part 8100 to 8120 and the chronograph runner changes from 8000 to 8000/3. It makes sense why the sliding gear would need to be changed... I'm hitting my post-caffeine wall though which is causing me to scratch my head when it comes to needing to change the chronograph runner. Probably it just has to do with tighter tolerances. Glad you've had your glasses on during this exercise though. Best to figure out all the needs upfront than to be surprised later.

Don't bother There's no difference. I'm a qualified Horologist and use the cheaper one in my day to day work. It is more than adequate. The only thing I would splash out on are screwdrivers, tweezers and a decent overhead light and watch holder and mat. Bergeon are the best for screwdrivers,Dumont tweezers You really get what you pay for Having the right tools make the jobs so much easier and are more efficient and ultimately pay for themselves time and time again Remember 90% of watches issues eminate from the escapement Happy watchmaking[emoji37]!!! Sent from my iPhone using Tapatalk

Thank you! I enjoyed that; very informative. Glad you got things fixed. And a highly amusing last picture!

Yeah, looking at the tech sheet it seems like the only work needed is to swap out the 30 minute recording runner (8020) with a 45 minute recording runner (8040). I've never done this myself. Be sure to let us know how it goes.

GST = Goods and Services Tax, as said above VAT just under a different name

Добрый день. подскажите пожалуйста, какую пасту вы используете,и делаете ли наклон , для получения рисунка Good afternoon. Tell me which pasta you use, and whether you are tilting to get Drawing

Its made in China and is utter rubbish. I see the seller mentions one like it sold on ebay for £400. If that is so the person has wasted money. The finish and design on this is terrible. The platform you can see is cheap and doesn't match. It's shocking. If a customer had brought it to me to repair I would tell them to throw it away.

Many thanks for the recent responses. I think there must be many people out here who need to do some simple repairs but are unsure about the process. Oxy-acetylene... I haven't used a torch for almost 40 years and only then for cutting. I was unaware that the materials were available in micro scale. I have quite a few pre-WW2 silver watches that primarily require lugs repaired or replaced. There are also a few that have failed hinges which is a bit more of a challenge I imagine. It seems a shame that the low-end watches of this era are getting junked for such trivial reasons. Not that they lack other problems! Roy

The photo size will most likely be the problem. Try cropping it. I can't remember which way round it is but I think I can only post portrait pics from my phone not landscape. Those brushes look fine. You can clean the commutator ring that the brushes run against with isopropyl alcohol or meths. If it is heavily scored or at all corroded then rub lightly with 1000 grade wet and dry paper wrapped around a piece of wood, although only remove what you need to make the brushes run smoothly around it. Brush between the contacts with a soft toothbrush to clear away any debris.

If it is not magnetised then it has been damaged/missaped in some way. There are vids on youtube showing how to manipulate the hairspring.The most common fault is the end curve of the hairspring gets misshaped when regulating which in effect moves the hairspring out of centre. Here is a good demonstration of this effect & how to correct.I use this method apart from straightening the spring first as I see no point in doing this. But everyone to their own method as hairspring manipulation takes practice & patience.

It could be magnetised which will make the watch run erratically because the hairspring coils will stick to each other & you will also get a low amplitude. The other issue could be a damaged hairspring caused by a slip when adjusting the regulator. Being only two years old I have my doubts it needs a service unless some dirt/grease has got into the hairspring. Good magnification will be most useful with this.