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Hello marcoskaiser, How is your Venus 170 practice going? Sorry for the delayed response, I moved recently and am still unpacking and getting the workshop set up. Before the move I got sidetracked on Omega bumpers, but I do need to revisit that 170. The pinion on the second wheel is slipping; pretty sure it's wear on the shaft of the second wheel as tightening the friction fit of the pinion didn't work. But to replace that second wheel pretty much requires another complete disassembly. Hi Ry! Best wishes, Scott PS that 175 is a beaut!

Here is Marks video on servicing an auto. Servicing an ETA 2824. I know its not the one you have but he takes you through how and where to oil and grease the parts. https://www.youtube.com/watch?v=qtgAJBPPefM

http://www.nawcc-index.net/Articles/BTI-The_Practical_Lubrication_of_Clocks_and_Watches.pdf

You need to unscrew here (blue arrow) to remove plate (red arrow) slide the plate out and you can then take off the oscillating weight. Some might not have that screw, so you need to use a small screwdriver blade to get under the plate to remove it. With no screw be careful not to bend that plate out of shape.

Think you can use this .

Hell there... I'm not the expert on this, but there are several threads on lubricants. I mention this as it is like discussing politics at a dinner party... It may not go over well. But, I do believe you can refer to the Mobeius lubrication chart and be fine. Watch will require re-regulation but that's normal anyway. Good luck!

Here a section of the edited video. I slowed it even more down than the slo-mo of the iPhone. Movie 1.mp4

@rodabod: I think that was a brilliant idea !! I stuck a 2.8x eye-loupe with Rodeco to my iPhone and the picture is stunning . Going in real slow motion and one can see that the balance wheel is making about 180 degrees. A clear view of the escape wheel & pallet fork. Now I need to find I way to upload a part of the video. One minute is already 49mb. I have a Macbook, anybody good at editing video's and which program to use?

Get lots of light on the movement and take a slo-mo video. You may need to shoot through a loupe to get a good focus. Then play back the video and watch how many degress the balance swings back and forth. You can follow once balance wheel arm as a visual cue.

@Endeavor do you have a phone camera with "slo-mo" function? That's an easy way to determine exact balance amplitude.

I thought so we can understand better about what the raw format looks like perhaps better to start with a running watch. So this is a ETA 6498 which I'm sure I've service to the zero idea when. three different amplitudes fully wound up 250° the classic pattern of what appear to be only three sounds. Then dropping the amplitude 160° to roughly corresponds to the amplitude that Endeavor has with his watch and notice it still doesn't quite resemble what were seeing above? We can start to see that there is more than just three sounds but you have to really look for them. Then at 110° thing is start to really separate. So I get the suspicion that the 160° that Endeavor has may be not quite right. Then the wavy microphone effect he has the uneven timekeeping is still either magnetism or the classic uneven power through the gear train.

Have a look at the ETA 2801-2/Sellita SW210-1, if you are looking for something new that is. The Sellita is the off patent clone of the ETA Sent from my Redmi 4X using Tapatalk

Some of these can be adjusted by removing links, but not sure about this one. However, even if it is adjustable you will be hard pressed to find the right links. It is an aftermarket strap, not the original. These type of straps come up on ebay quite often, but much easier to buy a nice new leater strap...

Also lined up the impulse jewel to the center of two arms and then drew the line straight from the jewel to the pallet fork pivot then placed the hairspring on the balance loosely to align with stud; while the impulse was perfectly centred with between the banking pins. Sent from my iPhone using Tapatalk Pro

Done and dusted. I shimmed the balance cock because I did not want to shorten the pivots and more and the pocket watch was running with good amplitude. Sent from my iPhone using Tapatalk Pro

For this type of jewel, also seen on the balance in older pieces, I assemble then oil. Drop of oil in the concave hole jewel, then a thin wire to push it to the cap(I use hairspring pins but there are also commercial 'oil pushing wires' for this. Gold colored handle). Keep feeding until the oil circle is correct. This goes for any non shock protected jewels.

On old pieces so many things could be up for grabs. Jewels get changed, staffs get turned or close matches modified to fit (so comparing "original" to a replacement goes out the window), on landeron for example they had pretty long production runs, possible there was a change in dimensions that usually but not always "works anyways", second or third party part makers supplying spares decades after production stopped. Looks like your escape upper pivot is too large in diameter. Can change the jewel or reduce the pivot. Balance pivots can also be modified but would be best to accurately measure the length needed before reducing their length. Vintage stuff is often a challenge, not only is the piece worn but you're following behind many pairs of hands that may or may not have been skilled or kind.

Hello Shirdel, On this friendly forum before making a post for help or advice. We like new members to introduce themselves. Just say a little about what you do and about yourself. We like that to go into the Introducing Yourself Here. This is the link. https://www.watchrepairtalk.com/forum/23-introduce-yourself-here/

Many parts can be recovered. It really depends what is rusted and how bad. Watch this...