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Do You Regulate Your Reps?

Syd

Renowned Member
3/7/06
694
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Our reps have excellent movements, whether it be the ETA 2836-2 or the Asian 7750, and both can attain COSC standards (-2 sec to +6 sec/ 24 hrs.) if properly regulated. For us novice without the complicated machines, we just do it by hand by trial and error while comparing it to the atomic clock.

The ETA 2836-2 mov't is easier because it can be fine tuned by simply turning a screw (+ -)

183673-6507.jpg


But the Asian 7750 is quite tricky since it cannot be fine tuned by screw. You have to push the little notch a fraction of a millimeter! (Counter clockwise if it's running too fast; clockwise if it's running too slow) It's quite touchy that you really need a very steady hand for this task (and a loupe to verify that you've only moved it a fraction of a millimeter!). I've been doing mine for a week and I finally got it down from +20 sec/ 24 hrs. to +2 sec/ 24 hrs. It was quite an accomplishment after several trial and errors. Patience and determination is the key. I wish there was an easier way to fine tune it ... or is there is a tool we can use?

How do you guys do it, or do you even bother?

183673-6508.jpg
 

rooster133

Mythical Poster
Advisor
25/7/08
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Yes, I sometimes do it, thought not very often. I am always conscious of the fact that this will also affect the beat rate...

Good post, by the way.
 

jmd33

I'm Pretty Popular
12/3/09
1,289
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0
I use the tip of a very small knife and just bump it a little. All my reps are within COSC.

It takes a bit, but that is part of fun!!
 

747

Renowned Member
30/3/09
820
11
18
I don't have winders for my watches.
I just set the time before I wear one of my automatic reps.
They are never worn for more than 8hrs straight.
In that time if it gains or looses 20 seconds I doubt I'd know.
That's just me.

I found the article very interesting though and often wonder how regulating is done.

I was also unaware that even Gens don't keep absolutley accurate time...
Thanks for the info
747
 

If you see Kay

Respected Member
26/1/09
3,128
10
0
the a7750 is much like the 2813 and the 4813. If you see the lever move, then you've moved it too much.

I like putting the watch in a watch case holder which is velcroed down to a stable surface and then give it a little tap. all under a loupe.

A tap can be a 10 second difference, so you have to experiment on the size and strenghth of your taps.

for the 2836, one notch is about 10 seconds, +/-


I don't have winders for my watches.
I just set the time before I wear one of my automatic reps.
They are never worn for more than 8hrs straight.
In that time if it gains or looses 20 seconds I doubt I'd know.
That's just me.

me too. Sometimes I would wear it two days in a row, but still I wouldn't notice
 

mw1015

Renowned Member
26/1/09
618
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hey great post! i've often wondered what regulating meant and how it would be accomplished!

like 747, i rarely wear my watch for such an extended period of time that i would notice it being 20 seconds or so out. it'll probably get even worse when i buy more watches >.<
 

jvd45

Active Member
6/9/09
326
0
0
Yes, I sometimes do it, thought not very often. I am always conscious of the fact that this will also affect the beat rate...

Good post, by the way.


actually, correctly done on these movements should affect beat rate but nothing adverse, Roo. Beat rate should be 28800vph, 8 beats per second. so each beat is 125 ms.

Beat balance can be affected if the stud is moved. Beat balance if affected is much more adverse. They both have a stud and a regulator. You should never have to touch the stud or it will go out of whack. just the regulator arm is moved of the two to lengthen or shorten the spring.

milgauss 2836-2 is +11 a week. BCE a7750 is now -1 /24hrs.
Screw is easy enough but lucked out with the 7750, got it perfect @ 3rd attempt.Tapped with wooden toothpick as i heard this is how guru does his.
 

cybee

Legendary Member
23/11/06
11,134
30
48
So I assume everyone getting COSC standards on their reps are testing it in 5 different positons and 3 temperatures LoL.
 

pilworx

alien member
8/2/09
3,458
86
0
i have been working on a home vibrograph substitute solution and will post my method soon. for the adventurous, you will be able to regulate to COSC in about 20 minutes. did my BCE yesterday and today at 24 hours i have not lost or gained a single second. there may be a subsecond variation but looks dead on to me at 24 hours.
stay tuned.

okay, quick edit; it has been more than 48 hours since my adjustment and i can see now that it looks like the BCE is running at about +.5 to +.75 seconds per 24 hours....very nice.
 

avenger007

Respected Member
Advisor
21/2/09
5,704
691
113
You guys are much braver than I am. I think it will be a while before I muster the courage to go adjusting things. The main function of a watch is to keep accurate time, and I think I could seriously jeopardize that. Kudos to you guys that can achieve COSC standards with a toothpick. :notworthy:
 

Syd

Renowned Member
3/7/06
694
0
0
So I assume everyone getting COSC standards on their reps are testing it in 5 different positons and 3 temperatures LoL.

I'm not really particular about the 5 different positions and 3 temperatures.
If I could just get the timekeeping between -2 sec to +6 sec/ 24 hrs., that's all the standard I need :)
 

Icestorm

Do not accept unsolicited offers
9/9/09
9
0
0
Guys, I bought a new, genuine Armand Nicolet watch the other day (it runs either a modified ETA 2824, or a 2895-2 movt, not exactly sure).

It's running about 1 minute fast per 24 hrs out of the box (jeebus ><). I contacted the seller and he suggested that I run it for about 2 months and the movement should sort itself out because the oils/lubricants need to be smoothed out across the watch. Apparently the watch was in a warehouse and not run for over a year (it's discontinued stock, so kinda believable i guess).

I really want to get it regulated now, because its so badly inaccurate that everyone's reps are actually performing better, but im worried that if it gets regulated now, then 2 months later the watch will actually be running slower as the lubricant smoothes out and the watch slows down.
Is this a valid concern, or not?


Thanks!
 

cybee

Legendary Member
23/11/06
11,134
30
48
I'm not really particular about the 5 different positions and 3 temperatures.
If I could just get the timekeeping between -2 sec to +6 sec/ 24 hrs., that's all the standard I need :)

Good point : )

I read somewhere that on high end watch with COSC standards the movements are tested then either cased or put back on the shelf and cased at a later date and they are not even re-tested. Between casing the movement, having the watch run down during shipment and then stored at the dealer, I would think by the time a person buys it you could throw all the COSC testing out the window. The only precision that matters is when it's on your wrist.
 

jmd33

I'm Pretty Popular
12/3/09
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So I assume everyone getting COSC standards on their reps are testing it in 5 different positons and 3 temperatures LoL.


LOL - No, only two positions: wearing it - and laying flat over night.
 

Syd

Renowned Member
3/7/06
694
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I have regulated a few of my reps which were to fast or to slow, and the mechanism in the movement is fairly well made. It works. There is a good story in this Months Horological issue which I will post about the good quality of counterfeits.


http://forum.replica-watch.info/vb/showthread.php/good-article-counterfeit-biz-45693?p=456259

Thanks for posting the article, Hambone.
I knew our reps were "gens" :)

One of the reasons why I buy reps is to recoup my losses in life :biglaugh:
 

visionary

Do not accept unsolicited offers
29/6/09
1
0
0
Great Information

I appreciate everyone's input and advice on regulation. I've been able to get my watches (8 assorted Reps - 7 w/2836-2, one a 7750 Asian) all to very reasonable accuracy. One of the reps is dead-on. It doesn't matter whether or not I wear it, as long as its wound it keeps almost flawless time. Others seem to be more position sensitive and/or temperature sensitive.

A watch that is dead-on in the winder may run slower when actually worn. (I attribute temperature differences as much or more than positional variation.

It's been an experience I wouldn't have passed up. Thanks to everyone for their help and coaching!
 

mroz

Active Member
13/10/09
425
0
0
What an excellent threat. Some really useful info for a noob like me.

I've just bought a BR01-92 and it runs fast - gonna leave it for a month or so and if it's stll fast - I'll open it up and make the adjustments as per Syd.