The great 992B Challenge

[Dano4734]

two of mine are losing about 2 -3 secs a day. One just died .. stopped running, got to get it back to the watch guy. Everything looks good but for some reason it stopped ticking

[doug sinclair]

Since 00:00 hours MST on Sunday, and as of 09:00 hours MST on Thursday, my carry 992 B, S # C342345 is performing very well. My eye isn't quick enough to make absolutely certain, but it appears to be within one second- fast! It is carried for 12 hours plus, each day, and runs face up when not in my pocket. Homely as a hedge fence- stainless steel case, melamine dial, but not bad for a 60-year old watch!

[Dano4734]

My third 992B blew a roller Jewel ... yeeek always something ... other two are averaging 3 secs a day fast

[doug sinclair]

Disturbing news about my wear 992 B, S# 342345. Yesterday, I reported that it was likely less than 1 second fast since Sunday at 00:00 hrs. My eye wasn't quick enough to absolutely confirm that it was one FULL second fast. Well, it has dropped that miniscule gain and this morning, it is dead on. Dead on, at least as far as my eye is able to tell! I can't fathom this erratic performance!

[Brad Maisto]

Not great news on my 992B, first off I did not wind it enough and it stopped during the second day. So i restarted and it was running about 30 seconds fast over the past 48 hours. So just now I turned the adjusting screw a couple turns as the needle was pointing more towards the "Slow" side. I'll repost back in a couple of days.
Brad Maisto

[doug sinclair]

With 36 hours to go, S # 342345 is 2 seconds fast! All I have done is to wind it and carry it each day. On another topic, my 950B from a previous test is now 11 seconds fast in one month or so. So it appears as though the 992B is keeping better time.

[John Cash]

thats amazing and very impressive!!!!!!! I have a 992b movement that i recently acquired that i am going ot get fixed (a fairly low serial number 18226) and a nice number 11 case to put it in.........so now i have high hopes it will keep impressive time also!!!!!!!!! they are nice movements arent they!!!!!!!!!!!!!!!!! go american technology of the past!!!!!!!!!

[doug sinclair]

With 88 minutes to go until 00:00 hrs Sunday Dec 11, (MST), my carry 992B has gained 5 seconds during the week of the challenge! Truth to tell, I know it can be caused to lose one second a day in the crown down position, so I could have forced the watch to be dead on by selectively parking it at night. But I haven't bothered. I wanted to see what it could do un-assisted. That's pretty good, I think. That would be 30 seconds in about 6 weeks! That's about 4 1/2 minutes per year. At this rate (assuming I didn't forget to wind it, or if no parts failed), it should be within 45 minutes in 10 years! Not good time keeping for the most accurate modern timekeepers, but pretty good for a 60-year old watch! It has been extremely stable, and I suspect I could improve on 5 seconds per week!

[John Cash]

wow.....impressive.......

[Vic Kuring]

My week is up and this time my 992B faired far better. In the week that it's been carried the watch shows a gain of about 9sec as of 9pm PST Naval time, 171hrs of constant runtime.

[Titanic1912]

Don et al:

At below is information concerning the 992B Challenge. I started at approximately 2100 hrs, 7 December and stopped at approximatley 2100 hrs, 14 Decemer 2011.

Owner Watch Carry/Static Rate(Sec)/7 Days Rate(Sec)/Day

C. Hartin 992B Yes/Yes +8.5 +1.21
(1954-1955)

" " /Yes +27 +3.85
(1956-1957)

" " /Yes +9.5 +1.35
(1951)

" " /Yes -3.5 -0.5
(1961 or 1967)

" " /Yes -10.5 -1.5
(1942-1943)

" " Yes/Yes +21 +3.0
(1948)

" " /Yes -13 -1.85
(1970)

I'm not familiar enough with this message board to keep the information from being scrambled.

Thanks, Curtis

[doug sinclair]

I know the challenge ended 5 days ago at which time S # 342345 (my carry 992B) gained 5 seconds during the challenge. But out of interest I checked it again at 10:00 hrs MST on Friday (today), and it has dropped a bit of time and is DEAD ON! Twelve days since it was last set, and I have done nothing to it to "fudge" the numbers. It has been worn about 16 hours per day, spending 8 hours running face up. I made some long term predictions about the time keeping of this watch based on 5 seconds in 7 days. At this rate, the accuracy performance will be vastly better than I estimated. So now it is a matter of compulsion that I wear it daily for a long period of time to find out just what it is capable of! Anyone for 5 seconds per month! Quartz watches for accuracy? BAH!

[Dano4734]

Wonderful Doug, I just got my steel cased 992B back today. Had a roller Jewel go off track ... running perfect now, can't wait to see how it does over the next week ... My Amish friend said it is dead on now. See how it goes

[Dano4734]

Dead on today Doug ... I am thrilled ... I guess my roller jeweled thingy just fell out of place. charged me nothing to repair it, timed and clean ... but he is a friend. Love this steel cased one with the porcelain dial. I am carrying it daily

[psfred]

Guess I'm going to have to get around to fixing my father's -- he bought it new when he graduated from college, I think (maybe before, at least I don't ever remember him not having it), steel case with a melamine dial from the late 40's.

My brother dropped it some years back and broke the pivots off the staff, and I'm having trouble with the roller on the new staff, it just drops right down and spins. I bought a complete but disassembled balance, I'll try that roller and see what happens, otherwise I'll have to find a proper staff that the roller fits on.

Peter