Hi, my name is Ross. I am a rookie watch enthusiast and I am really puzzled here.
Could someone explain to me what kind of a problem am I facing with my timegrapher?
I do two sets of measurements with the same watch (1 day or 6 days apart) and receive vastly different results - to the point of being completely different from what I observe in real life.
For example, my timegrapher shows that my watch is running fast (or ahead of time), while in real life I observe that it runs 7 seconds per day behind. I even recorded a video about it so you could see it for yourself: https://youtu.be/mhGzf6aLMlY
How should I interpret that? Am I doing anything wrong?
I am working on a vtg. Citizen cal.7520 automatic movement.
I have put the watch on the timegrapher
The graph looks OK but the beat error shows 9.9ms. I presumed that beat error should be around 1.0~2.0 given the shape of the graph.
Is the beat error actually bad or the timegrapher is wrong??
Padd here from the UK.
It all started with a desire to fix a Submariner replica I bought off a lucky lucky man in Pisa, Italy while on a European tour.
Next thing I know I'm investigating Submariner replicas and building my own, signed by me, using a Seagull ST2130 movement, adventure watch.
Now I'm hooked, I took inspiration from Marks videos, now I'm happily starting to work on parts of the movement, and have recovered one or two movements where the stem came out, but wouldn't stay back in. I have built a few watches for friends and relations, but now I need to be able to service them when they come back to me.
I also have a couple of movements that run really badly, so I will be practising on those over the winter weekends. Full repair/servicing kit IS my Christmas present.
I really want to get one of those ST2130's, serviced and tweaked by me, doing a -------------------------- on my timegrapher. not a -.'-.'''--,'.'.' (and worse) that they do at the moment.
I wont start to list my watch collection, but it runs from a Casio digital to a Rolex pocket watch with Seikos, Citizens, Omegas and home builds in the mix.
Must do Mark's course, but I'm afraid I may have already learned 60+% of it already.
Hi well done jdm a very comprehensive walk through. Anone working on the same movement would do well to read this before starting. excellent. As regards the non cleaning of clean parts screws an plastic wheels I can see where you are coming from and respect that opinion, I also see Old Hippy's point of view, being trained old school and very correct its hard to change. But as you say it works for you with no problems so therefore you do it your way. I have done it both ways and had no problems with either. Thanks again for a good and instructive walk through.
I've used enamel paint (as you'd just get from a model shop) with good results.
I suspect the lacquer you've found is the same thing ... but perhaps thinned to a consistency that makes it easier to apply.
When painting you want to do it in one stroke; don't be tempted to go back and fiddle as you'll be less likely to get a smooth finish. One coat is usually fine but if you think you need a second wait until the first is fully dried first.
Its a early Landeron possibly a Calibre 13, only way to identify for sure would be a pic of the keyless works, Eberhard in my experience from a number of years ago are a very good company to deal with if you require parts they will supply if they have them in stock, they also seem to have good factory records so if you contact them with the serial number they may be able to help.
Very much appreciated, this walk-through. It's amazing how much quicker I can work if I don't have to photograph everything! I have removed the balance cap-jewels and settings for cleaning. I'm confident I can put these back OK. There are two other cap jewels held by Diafix springs on the barrel and train-wheel bridge, for the escape wheel and third wheel. These are smaller, and look like a challenge. Before I do something I'll regret, what are your opinions?
a). Leave well alone, no need to tempt fate
b) Absolute must, if you are doing a proper job