Bob Demers wrote:..I probably should have said, "turn the open end of the Regulator Screw 1 Index Mark toward the (-)."

Got it. Thank you!

After 67 hours, mine is ~ 4.3 seconds/day fast, unofficially. Based on what I see, and COSC specs, that seems pretty good.

..check out Hans' post on How to correct a Malvern runnung fast or slow. More complete than my post.

joerattz wrote:After 67 hours, mine is ~ 4.3 seconds/day fast, unofficially. Based on what I see, and COSC specs, that seems pretty good.

4 seconds is excellent! The only thing you have to do now is 'hack' the watch for a few seconds every now and then.

joerattz wrote:After 67 hours, mine is ~ 4.3 seconds/day fast, unofficially. Based on what I see, and COSC specs, that seems pretty good.

After 1 week, ~ 3.57 seconds/day fast!

joerattz wrote:

joerattz wrote:After 67 hours, mine is ~ 4.3 seconds/day fast, unofficially. Based on what I see, and COSC specs, that seems pretty good.

After 1 week, ~ 3.57 seconds/day fast!

After 2 weeks and ~ 18 hours, 3.18 seconds/day fast. If you consider that it has to overcome the lesser accurate first few days, it must be doing pretty good. I think I will resync and start over.

joerattz wrote: After 2 weeks and ~ 18 hours, 3.18 seconds/day fast.

Wow! Yours runs like a certified chronometer.

Mine is 14 to 17 sec/day fast over 23 days that I have it. I measure and resync it weekly.
It looks like I need to visit a friendly watchmaker or use Hans' protocol to regulate it.

Kostya wrote:

joerattz wrote: After 2 weeks and ~ 18 hours, 3.18 seconds/day fast.

Wow! Yours runs like a certified chronometer.

Mine is 14 to 17 sec/day fast over 23 days that I have it. I measure and resync it weekly.
It looks like I need to visit a friendly watchmaker or use Hans' protocol to regulate it.

I know. I am very impressed. I had little interest in mechanical movements for quite some time because I perceived them as not accurate enough for my taste. But, I can definitely live with what I am getting. I wonder how much it has to do with the positioning of the watch?

Here, just for the record is how my watch is positioned, in case that is what is giving me such good results. I am wearing it for about 12-13 hours per day. Of that, I would guess about 80% of that time is with the dial up since I am sitting at a keyboard. As I look right now, I would say the crystal is at about a 10-15 degree decline toward the 12:00 position.

When I am not wearing it, I have it sitting on top of the nicely padded CW box it came in, with the watch on its side, crown pointing up.

Maybe I have just luckily found the right combination of positions for my watch?

Make sure you give yours enough time to settle down first. Anyone know how long you should give it?

[quote="joerattz]I wonder how much it has to do with the positioning of the watch?[/quote]

I have it on my wrist for about 13-14 h a day and the watch is changing position quite often due to my activity. I tried to store it overnight in many different positions - face up, face down, crown up, crown down, 12up, 12down - and found that only in 12up position it runs a little bit slower, but still on the plus side... Looks like a simple regulation could make it very precise since it's already running stable enough.

Ok, I resynced last Monday morning. Now after 4 days, it is ~ 3 seconds fast. That is .75 seconds per day fast. WOW!!! It's so good, and it seems to be getting more accurate as time passes, I am now worried it will fall through the floor and start going the other direction and keep getting slower and slower. Ahh, it'll stabilize soon. I hope.

I considder the first two months to be my break-inperiod, but what worries me most at this moment is that I came from 25s/day in the first days to 6-4sec/day yesterday, but went back to >20s/day today. I would rather have it at a steady +20sec, so it would be just a matter of regulating the watch.
I think one week is to early to say something about accuracy...I will watch it closely over a longer period and will let you know.
BTW: what would be a reasonable price for regulating done by a watchmaker overhere in the Netherlands?

I got my watch 8 days ago. Today it is running 18 seconds slow. Two days agon is was right on--exact. Before that it was running about 7 or 8 seconds fast cumulatively. The plus and minus behavior is a little unusual according to what I am reading. So, on average it is running a little over 2 seconds a day slow. I have worn it every day. I am surmising the variation is a funciton of break-in. Any alternate thoughts??

Maybe you should be more patient for a while (I know, it's hard...) After the first 5 days mine went to a steady 24s/d fast. I try to store it overnight in the same way every night (In my case on the 9). The variance in the first few day was in my case probably due to having a sore shoulder. I didn't move the left arm around much and the time went down to +4s/day. After that it went up to +24, almost every day.
Asked my local jewellery-shop; adjusting would be around 10-15 euro... I won't take the risk of adjusting myself dispite the excelent tutorial Hans posted. If I could get it -24 sec my accuracy would be between -4 and +1.

After 11 days, my new Malvern is a total of 30 seconds slow. That is not much per day, but, I seem to be the only one with the watch running slow. Anyone else out there losing time.

billkt3 wrote:After 11 days, my new Malvern is a total of 30 seconds slow. That is not much per day, but, I seem to be the only one with the watch running slow. Anyone else out there losing time.

Out of curiousity, what is your serial number?

Are you south of the equator?

Right now, after 22 days, ~ 5 hours, I am 6 seconds slow. That's ~ .28 seconds/day slow. I have to go now, the US Naval Observatory is calling to get the current time.

But, I used to be fast, so I am guessing that I was initially fast, and have now slowed? So maybe I was really off more than that, but it has averaged out?