A friend of my father gave me this old pocketwatch to see if I could repare it.
As you see in the picture, the balance wheel is extremely bent. I tried to bend it back, but i cant make it good enough.
Does anyone know where I can find a balancewheel for this Revue 30 movement? I have tried to search around online, however, I cant find any.
Is there a generic balance that would fit in here?
I’m working myself through Mark Lovic’s “Watch Repair Lessons & Courses”. Before enrolling I wasn’t sure the courses would be worthwhile to me, as I had spent a huge amount of time researching the Internet on how to service watches, and had serviced several Vostok 24XX movements (very affordable movements, BTW).
Now, in hindsight, the courses have proved to be extremely valuable to me. I’ve learned things that I just haven’t been able to find elsewhere, like how to easily transfer watch oil from the bottles to the oil pots, how the get the right amount of oil onto the escape wheel teeth, how to remove rust from pinion leaves, that I shouldn’t oil the pallet fork jewel bearings (and why!). The list could be made very long.
Anyway, yesterday I finished the level 2 section of the course, named “Lubrication and Re-Assembly”, and as I beheld the magic of seeing the movement come to life again I shoot a slow-motion video of its beating heart, i.e. the balance wheel. For anyone interested you can see the video here.
Thanks for reading!
I broke the pivot of balance wheel on ETA 2804-2.
I bought a generic complete balance wheel with bridge for ETA 2824-2 (http://www.ebay.com/itm/262234041099?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT) and tried to install it without any difficulty. There is only a difference between the new and old one is the shock assemblies (Incabloc vs Novodiac). In the photo below, the new one is the yeallow on the right hand side.
My question are:
- Is the complete balance wheel and bridge replaceable between those movements?
- If Yes, after installed, the balance wheel has swung a little bit then stop. What is the reason? How to fix it?
I am in the process of servicing the Landeron 48 movement that came with the complete watch with wrong dial applied, as many of you can recall from my other thread. After a brief check I noticed something was wrong with the balace wheel, so after inspection of the part, I discovered that the upper pivot was broken.
I had another balance wheel with bent hairspring, so I decided to replace the balance wheel using the original hairpring. After a bit of tinckering, I managed to do just so, but a new problem arised, which will be shown in the linked videos here below.
The first video shows how the new balance wheel turns freely after a bit of adjustment in the movement:
The second video shows the problem I faced after replacing the hairspring onto the balance wheel and reassembling everything back together. Basically, the amplitude is extremely low, but I cannot figure out still what can be the problem.
The second video above shows the issue better than a thousand words...
I need the help of the experts, here: what can the issue be? I followed all Mark's videos on putting the watch in beat, checking the pivots, pallet stones, everything. I have never seen such behaviour before. What can it be?
I'm relatively new to mechanical watches and have quickly become fascinated but have an elementary level question that hopefully someone can answer.
If the hairspring and balance wheel come to a complete stop due to the main spring running out of power, what is it about winding that sets the balance wheel back into motion? I understand the way the escapement works once it is in motion to input a small amount of energy into the balance wheel, but don't understand how winding alone sets it back into motion. I know with grandfather clocks you have to restart the pendulum manually and I'm wondering why this isn't the case for watches also. TIA.
No registered users viewing this page.
JDM is completely right. But honestly I think the hairspring would be a tall order even for an experienced watchmaker now... I'll be taking pictures today. Honestly to me this is really the hardest part of the whole watchmaker thing. Hairsprings are so delicate and my hands don't seem to be steady enough yet, especially my left hand. And as jdm said, I just learn from Mark's course. I wish I could learn this in person. Thanks!
It might be nice if you gave us a picture looking straight down at the chronograph with as much detail as you can. One of the minor problems with the chronographs are and it's mentioned in the manual not all screws are screws. Some of the screws are for adjusting things and if you rotate them without knowing what you're doing that would be bad.
Hi, I'm new this site, a happy tinkerer but thought I would say hi and see if anyone can help. I have a mantle clock which had a broken suspension spring - type E with two springs approx 21mm in length - I have replaced this without any fuss but when the pendulum swings it has a little kick outwards at the end of the arc. It looks as if it's swinging more on one spring than the other which may be causing the pendulums erratic path and could have caused the spring to snap in the first place. the only thing I can think of is if the suspension spring is sitting too tightly in its mount. Are these supposed to sit loose? has anyone seen this sort of thing before?