RWG Technical

I have tried to remove a couple of them, and they were impossible to get off without risking permanent damage, so the only solution is to break the glass covering and make one with varnish. RG

I am glad you like the results. It must be the lighting, the lume is all C1 pure white...no blue or any other tint to it... RG

@ jumbie The watch I quoted as having the older less quality A7750 in it, was serviced only once, when I got it. It gets regular wrist time, probably a day or more a week, every week, I use the heck out of the chrono, and at the 29 month mark now, I put it on, and it starts to run and keeps excellent time... The latest A7750 is 80% of the astetic fit and finish of the ETA 7750, it has two common problems, 1. loose cannon pin (which I can replace with a genuine ETA one) and 2. loose pallet stones, which I glue in place. Other than the astetic issues, as far as quality goes, once clean and oiled, the are running fine, and so far, not one has been returned for warranty, not one has been reported as having failed, etc... So to answer your two specific questions, I think as long as you got the watch serviced within a year of purchse, and once serviced have it done every 5 years, the watch will last a lifetime, in other words, it won't wear out, it could break if you dropped it, but the parts are going to stay as they are due to the clean oil and correct adjustments that are done when it's serviced. RG

Glad you like the results. The pearl can be relumed, but I only do it if I am asked. Why? Most of the pearls have glass over them. The best way to relume the pearl, is from below, which requires the bezel be removed...on the majority of watches, the bezel is impossible to remove or too risky to remove without damaging it. That leaves only one option if you want it lumed, that is to break the glass off the pearl, clean it all up, clean out the old lume, apply new lume, and then replace the glass with clear varnish. Many people don't want to loose the glass covering, so they chose not to get the pearl lumed. It's always a give and take, you can get lume, if you dont' mind loosing the glass covering... RG

No matter what I say, or offer from first hand experience, it's going to sound like a sales pitch and biased...so I'll sit on the sidelines. If you haven't already, have a read of TTK's response based on first hand experience in country, it's in the 7750 post on servicing watches... RG

That is probably because they are used surplus movements, and need to be cleaned and oiled...the ones from your country are probably new, not old...so they don't have the same problems. Once cleaned and oiled, they work fine. RG

Cleaned up, should work now... RG

Looks really nice, I may have to consider one for my speedy... RG

That thought never entered my mind until you mentioned it here. I fix watches as a hobby and because I can and like to, nothing more. My services will always be required as long as there are mechanical watches out there. No concerns from my end, no more so than someone new offering services, it's a free market, the more the merrier... RG

Other than a slight thickness difference, and the fact one has a Date as well as Day, the 2824-2 and 2836-2 are identical. There is always a risk when hand winding these models, as the click wheels are prone to damage. The slight drag you feel on the 2836 models is the click wheels sticking and eventually requiring replacement, the click wheels on the 2824 are still fine, which is why you don't feel any resistance. Best to avoid winding except to get it started. Mechanically, the 2824 and 2836 are identical, there is no reason to consider one better than the other... RG

PM sent, RG

Common problem, even happened to me... My fix, replace the parts with genuine ones, here is that post for ref: My Rolmegamatic upgraded SMP chrono RG

That is the problem...unless you take it apart, you can't tell if the work was carried out. And even if someone said it was serviced, and the watch stopped working was it due to a fault, or lack of servicing? Failure rates of the A7750 is quite low, and tagging on another $100 or so, stating "It's been fully serviced" would be a cash cow as far as I am concerned, since there is no proof of the servicing actually being carried out. I have seen an A7750 that was according to the owner "Fully professionally serviced" as sold by one of the dealers, when I looked at it, it was completely dry, no oil, nothing was done to it... There has to be a trust between the person offering the servicing and the customer, I am not sure that exists in this case. Where would you find watchmakers in Asia to service all these watches, before delivery? I think that alone is a big problem, why train to service watches, when it's cheaper to install a new movement?? RG

15-20 seconds under a bright light will fully charge it, in a dark (no ambient light) you can read the time for 8+ hours. The initial bright green glow will fade quickly, but the watch will remain readable in dark conditions for hours. RG

Not without leaving out the mainplate and using the Asian mainplate. Everything but the mainplate would be swappable between the Swiss and Asian, but it would not be a feasable modification as there would be little to gain by installing a Swiss in place of the Asian. RG

Just put the lume away, I think it looks good. No real challenge, just have to make sure to minimize the variations of the lume so it looks smooth. RG

Very impressive, great job. RG

This is not something new, the misleading description of a movement from the dealers. They still use the term "Lemania 1884", "Unitas", "Asian ETA" etc...none come close to describing what is actually in the watch. In this case, they were correct, it is a 7750, but how the seconds are modified etc is not true, there are no "Extra" gears, or special modifications, nothing but a normal 7750 with a bunch of parts missing... All the more reason to look at this stuff first, and then decide what it actually is. @kruzer First one I have seen with spokes, but it needs them due to the size. RG

It was quite smooth as delivered before I serviced it, I'll see how it looks when I am all done and have the hand re-installed. RG

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It sounds like the calendar is causing the problem, since that is the time when it's changing to a new date. Try and isolate the problem, if it's only 1am when it quits, then you know the reason. It's normally black or white, if it's broken, it's broken, movements dont' normally fix themselves... As for repair, it all depends on what this means, if you have to return it to the dealer, you should read some of the problems some members have had when they do this. RG

You could try drilling the head off so you can remove the cover. Once the cover is removed, there should be enough of the screw left sticking up above the mainplate for you to grip it and remove it. Or you could try cutting a new slot in the head with a screw head file, and get it out this way. Never easy to get these out, even more difficult when the screw head splits in two while attempting to remove it...nothing to grip then... I would try drilling it out, but either mask off the rest of the movement, or have the movement completely stripped when you do this to avoid contamination. RG

You could do it, IF you transfered the Asian parts to the Swiss movement... BUT, the problem will remain, to get the running seconds at 6, you need to use all the extra Asian gears, which is where the problem is in the first place. I did a similar transfer with a asian and swiss 7750, with the 7753 subdial layout...have a look here, this is the level of labour required to make this swap. Replacing the Asian 7750 with a Swiss 7750... It can be done, but in the end, the movement will probably not work anyway, due to the extra friction from all these extra gears... RG

I agree with avitt. I think the mainplate is Swiss, old stock 6497, I say old stock, because of the dial attachment screws, they are on the sides of the mainplate, just like the old pocket watches are. The single sided pallet holder is also the giveaway on this model. From my inspection, the gears etc are Asian, since the ETA ones are very distinctive under the loupe in their finish. The problem with these models was the hairspring touching the balance or bridge, but of the ones I have seen lately, that problem is fixed. Good movement overall, has a few quirks when winding (click feeling) but overall not a concern. RG