RWG Technical

Most likely that is what happened... ALL 7750 Stems are identical, 7750/53/65 etc Swiss/Asian etc... I have never had an issue with any stem on any of these models. I think he sent the wrong parts. And as Mark stated, a 7750 datewheel IS NOT interchangeable with a 7753 wheel, the 7753 is larger. RG

Clean and organized, just as I suspected... Very nice indeed, I like the natural light. RG

I found out that Bob was an IDIOT about a year ago...and immediatly stopped buying from him, reported my expreience on the old RWG and suggested that no one buy anything from him. He's an idiot, if I lived in CA I would go over to his shop just to punch him in the face... RG

All that and more was already covered in detail here in this post... How-To Install Rolex crown... RG

It's adjusted by moving the stud hairspring arm, on yours it should be the stud with the silver colour. You need a timing machine to check it out as you adjust it. RG

My pleasure...seems as if the company missed it during the service... RG

It is possible, but requires disassembly and swapping of parts between both movements, and the costs associated with that work. Then add $250+ for a ETA 7750. Asking the ETA 7750 to power the extra 5 gears for the running seconds is risky as it's a big load on the movement... If I wanted to keep the watch for a lifetime, I MAY consider replacing the Asian with a Swiss, IF money was no object... If I wanted the watch to last a lifetime, I would remove the running seconds gears, get the movement serviced at some point (between the time you get the watch - till it quits or in a couple of years) and use the Asian 7750 that came with the watch... I see NO reason that the Asian 7750 will not last as long as the ETA all things being equal, i.e. you maintain the movement over the years with regular service. I am finding that most of the New Asian 7750's require new cannon pins, good - not bad - news, as the ETA ones fit perfect...so spares seems to be a non-issue...and the ETA part is 100% better than the Asian one...but this weakness is the only one, and was a problem on the older 7750 as well... As for can I do this? have a look in my subforum, it should answer that question easily... RG

There are two parts to timekeeping... 1. the beat of the watch 2. the rate or how fast or slow it runs... Without a timing machine to check each parameter, and ensuring that the beat is correct, your just guessing at the adjustments...you may be able to get it running good, but it's hit and miss and a lot of work...and if the beat is out, it could vary from running fast to running slow... When this was serviced, the beat and rates should have been adjusted, and the watch should be within 10-20 seconds per day... You really need a analyzer like this one to set this up, it tells you exactly what is going on... I suggest you take it back to the shop, and watch as they put it on the analyzer and do the adjustments... RG

The click wheels in the autowinder are damaged/gummed up...replacing or cleaning them throughly will fix the problem... Nothing to do with the stem or crown, click wheel sticks, when you wind by hand, you spin the rotor, rather than freewheel it as should happen... RG

Oh yea, it just figures... I only have a few minutes a day for the forum, and the interesting debates start up... All I have time to add is my two cents (for whatever it's worth) This discussion (to service or not) can apply to all watches, gen's alike...even if you bought a Speedmaster new or used, your eventually going to have to get it serviced, so the question is more of "when" to service vs "will I service it". I have stopped to service, or refuse to service a number of movements. Why? Well because it was a waste of the customer's money... Of the dozens of 7750's I have serviced, I only know of one failure so far... If I did not think it was worth servicing, honestly, I would not be offering the service. Think of my warranty, why would I want to have all these watches sent back to me for warranty service - if I knew that servicing was a waste of time and money- do I really want to spend all my time and money on warranty work??? Would you?? Sorry, got to go, hope the discussion continues... RG

Have a read in this section, most every version of the ETA 6497 has been torn down and reviewed in detail. (it's NOT a Unitas but an ETA, Unitas has been out of business for years...). Look for the posts with 6497 Review in them, and you'll know enough to make an informed decision... Reveiws of movements etc LINK RG

Normally I don't redrill these holes, but remove the screw, put some structural epoxy in the hole, re-insert the screw, and 9 times out of 10, you end up with usable threads if your gentle with installation and removal... @ubiquious, I was hoping to practice on yours... RG

All 7750 series have the dial feet in the same location...if the dial was/is from a 7750, it will fit... RG

According to my supplier, who supplies "Surplus" ETA movements, and Factory fresh sealed pack "NEW" ETA movements... The Surplus ones can come in any colour, BUT all the ETA Factory movements are - GOLD Plated... Take that for what it's worth, I do know all the Surplus ones I buy, are Silver Nickel plated, not Gold... In your case, functionally and usability, the Gold or Silver one is on par with each other, they will both work and give you years of successful timekeeping...it makes little difference in the end... RG

Looks great, that AirMail to the UK is amazingly fast... Congrats, really nice watch. Good pics as well. RG

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I won't be active on the forum from tomorrow until the 11 December. I will try and respond to PM's as quickly as I can, but most likely, I won't have any time except on the weekends to participate in the forum itself. This ONLY affects my forum participation, NOT any planned, existing, or pending watch work that I have in house. My participation on the forum is limited, but I am NOT going out of town. I have some personal stuff on the go for the next two weeks - that's all... For those that have PM'd to me today, I'll try and respond before the weekend is out, for the longer PM's or those asking for watchmaking consulting, I am unable to respond...I just don't have the time. Thanks for understanding. RG

... and again.... and again.... too funny... I have to find time to re-post my 2836 teardown and servicing post, then it will be clear to everyone the level of work involved. Have a good weekend, RG

There are many special things to know and learn to be able to "Oil" a watch... the first is how to take a watch apart and put it back together. Oiling (or servicing) a watch requires that the movement be taken completely apart to the last screw and gear, like this for a 7750 for example... Then you clean the parts in an Ultrasonic cleaner with special watch cleaning chemicals and two rinses, dry all the parts, inspect them, then assemble the watch and oil and grease the parts as you do the assembly, test each subpart as it's assembled, make adjustments etc.... Oiling a 7750 requires 6 types of specialty oils and greases. Then after assembly you test and adjust the watch on a timing machine like this one... A good way to start to learn to oil a watch, is to take the course at Time Zone as indicated above... RG

You asked the same question already, and the answer was provided... Stuttering hand RG

I have made it clear each and every time this topic comes up, there are many who choose to never service their watches and have no or little problems...it's not my business what they or anyone does. I have never intentionally suggested or implied that any movement (7750 or otherwise) needs service as soon as you get it... what I have done and will continue to do is to let the members here see what I see and find, and my "opinion" on any movements I work on. If you can direct me to the quote where I state"...if you do NOT service and Asian 7750 movement (and within days of receiving it), then it will unequivocally fail." I would be more than happy to edit that post. If by me reporting that each and every Asian 7750 I service is needing oil or over oiled (as in my previous pics) you consider this to be telling members that if they don't service their watches right away they will fail, I have to disagree. I report what I see and find, while you may not like it, it is what it is... what do you suggest I do, lie?? I report what I see both the good and bad, I have done so for over 24 months on this and the previous RWG and will continue to do so. When, and if, someone else decides to step up, tear the movements down, do detailed posts of their findings, I guess I am all you have...be it good or bad, or in your opinion self serving... Spend a day at the bench with me, and you'll be shocked at what I do see and find, that I dont' report on the forum but only in private to the owner... You have made it clear as to your agenda, you think servicing is over priced and a waste of time, and that I am misleading members with my comments and posts. You have your opinion and have made it known, thanks for letting us know. The only reason the price is double, is because you got the watch for a few hundred dollars... this would not be the case with a Genuine... If you can't justify it, then simply don't have it done. There is no doubt that a clean and oiled watch WILL (NOT may) last longer, it doesn't take a genius to figure that one out...to suggest otherwise is foolish. Now if you'll excuse me, I have to go, my workbench is full and I must get to work... RG

He quoted 1/4 of my cost, so that would be $50 for a full service on a Chrono...wow... Lets see, a chrono takes on average of 5 hours to service the movement alone, all this for $50...sign me up for this one, I see a money making oportunity for someone here... All one has to do is Google watch repair prices from recognized shops, and you'll quickly come to the conclusion that $50 is not going to get you a full correct service on anything, let alone a Chrono... He's arguing for the sake of arguing...in any event it all comes down to choice. He thinks it's too expensive to service a movement in a rep and cheaper to throw it out when it breakes. I keep my watches and don't consider them "Throw Aways" by any means... but to each their own... RG

Works for me... Sounds like a great price, go for it... as in most things in life, you get what you pay for... 1/4 of the cost most likely is a "Swish and Lube Service"... Believe me, you have no worries of that ever taking place... RG

And the point is... It's clear your not in favor of servicing a watch, so be it - you made your point. Don't get it serviced. Seems as if your arguing for the sake of arguing... The genuines cost MORE, but the servicing still costs the same and requires the same skills and time as a rep... Your expecting a product costing 10% of the cost of a genuine to be like a genuine, BUT only cost 10% of the price of a genuine to get serviced. Sorry, but it can't because although it's not a genuine, it's still got the same engine powering it... RG

I dont' stock ETA7750's as they are too expensive, best buy is to get one on Ebay...$250 or so... Good point on getting "someone" to work on a rep...that is always a problem... RG