How much time gain is normal in 24 hours?

[Yume-sama]

My Platinum DD gained about 15 seconds today, it could be the way I set it when I went to bed lastnight. What is the normal gain (or loss) in 24 hours?

I know you guys are the only people obsessed with precision enough to be able to answer this.

[JJ Irani]

Any more than one second on any of my Rolex watches, and I turn ballistic!!

[Yume-sama]

Originally Posted by JJ Irani

Any more than one second on any of my Rolex watches, and I turn ballistic!!

So, do you reset the time everyday?

[JJ Irani]

Originally Posted by Yume-sama

So, do you reset the time everyday?

NO!!! That's just how accurate my 3 Rolex models are!!

[Cato]

My new DJ is running +6; I'm currently checking it again. -4 +6 is the Rolex standard. If I were you, I'd check it again and if it is still more than 6-8 seconds, send it back to Rolex for adjustment. Years ago when I got my first automatic watch, my SMP, it was running +10 minutes! Not knowing any better I sent it to the Omega Service center in NJ! That's the worse center in the Omega organization, I understand. Well about 4 months later it came back to me and was running +5. After it's last service it's running +1!

[shedlock2000]

SCOC watches are recomended -4 +6 seconds per day. However, JJ is always correct, mostly Rolex watches gain or loose very little, and anything really over SCOC recomended alowance and your watch should be set by and AD to bring it back in to allowable limits.

On the other hand, my GMT IIc gains about 10seconds a day, whereas my GMT II gained only -4 +6 seconds a month.

the way that watches are adjusted can alow for small discrepancies in time keeping. One of JJs watches remained perfectly in time for several weeks before loosing even a second.

Time keeping may also have to do with your occupation, and how you place your watch at night, or how you set it in the first place. There has been some threads about wether to leave crown down, or up at night, or flat. This also can affect accuracy. For me, i wear mine through the night, so it moves as i do.

All this considered, i must say, and i feel many will agree, 15 seconds, is a little excessive, and, you should drop it in to an AD for adjustment.

Hope this helps!

[Skutt50]

My recently serviced and "newly" regulated DateJust slows down about one second during the day and gains about the same during the night if I leave it crown up.

Certain days it may loose more depending on my level of activity. Over a months time I usually have the correct time within +5 to -20 seconds and I only need to set it when I adjust the days at the end of some months.

[Shlomo]

What Rolex can give the most Accuracy?
I know that it depends from many factors. But, potencially, what movement can show the time more accurate?

Thanks!

[pepemaui]

All of the diamonds make it faster.

[axpidn]

My seiko 7s26 first year around 12s/day now around 15s/day not bad for 120 usd watch....

[vapalux]

Funny that. my 20+ year old Seiko 5 auto keeps perfect time. Not bad for £12 off ebay!

My Rolex's despite adjustment always run fast. No idea why I have just got used to it.

Si

[Moto]

I suggest that you fully wind the watch then place it in the same position for the next 24 hours to see what it does.

It would concern me if the accuracy of my watch changed suddenly and I would have it inspected immediately. I might even hack it if the change was significant.

[vapalux]

Hi Moto

I have done that. Wound it up and walked away and left it. Power reserve ok but I have 2 Rolex's which for some unknown reason run faster than the others. They have been looked at and adjusted/regulated more times than I can think.

I have just got used to it know even though it does annoy me occasionally. (That's when they go back to be checked again!)

Thanks for the info

Si

[Moto]

I actually meant that advice for Yume, but it stands for anyone experiencing similar issues.

[tphan]

my subdate was 30+ per day...that's why it's at Dallas RSC as we speak

[rickyslam]

My sub was doing +17 secs a day. I turned it in to Beverly Hills RSC 2 saturdays ago. I feel so naked without it. I want it back already! Also my DJ does +5secs a day which is acceptable. I do with it can be better. But thats what a casio is for.

[Wildwing]

Plus one second a day with my Datejust. And if I place it crown up for the night, it will be back to square the next day. No need to ever adjust it manually.

[yeeg]

Whats the best way to test the accuracy of the watch?

[mfer]

Wow. Only 15 sec!

Min gains almost 24 hrs. More like 23 hr 58 sec.









Sorry could resist being a smart a88. all my watches lose time, never gain. Must be the way I wear them.

My sub ALWAYS loses 2 secs a day (or gains 23hr58sec) and my GMT IIc varies between -2 to -1 sec a day.

[NDT III]

Go to usno.org. Set your watch to their clock, make note of the date, check back at 10 day intervals (or some multiple thereof if you can stand to wait that long).

[Z-Sub]

My black sub used to gain only 1 sec per day but nowadays it's been gaining about 6 sec daily.

Funny, I've sent the LV sub and my bluesy to RSC for adjustment since they all ran fast almost 8-9 sec daily and came back fine. now my third sub is doing the same.
so far my SD4000 keeps about perfect time. same movement but subs seem to be more vulnerable.

[tecknik1]

My 1958 Air King/Explorer Super Precision runs 3-5 seconds a day fast , I think thats very respectable for a 50 yr old watch , I,m 46 and the watch does better!!!

[rijowysock]

dont worry about it if its one day..

you should always average your timekeeping over 10 days or more

average if over/under 10seconds/day then needs adjustment.. if not.. then fine.

[aleeboy]

Is it normal for watches to change their daily variation rates? My Explorer II went from losing 2 seconds a day to gaining less than a second to losing less than a second per day in a few months. My IWC Pilot Chrono went from perfect (I mean it was perfect) to minus 1 second per day two weeks ago - it was running at this rate since August.

What causes this?

[Kokyuryoku]

Originally Posted by aleeboy

Is it normal for watches to change their daily variation rates? My Explorer II went from losing 2 seconds a day to gaining less than a second to losing less than a second per day in a few months. My IWC Pilot Chrono went from perfect (I mean it was perfect) to minus 1 second per day two weeks ago - it was running at this rate since August.

What causes this?

　

[xjeeunitx]

When my watch is fully wound, it runs +5 seconds per day. When it's almost out of power, it loses -4 seconds a day. It all depends on how you regulate your watch.

[Moto]

Originally Posted by xjeeunitx

When my watch is fully wound, it runs +5 seconds per day. When it's almost out of power, it loses -4 seconds a day. It all depends on how you regulate your watch.

I think that's backwards. Watches tend to run faster as they lose power.

[Paul B]

Originally Posted by aleeboy

Is it normal for watches to change their daily variation rates? My Explorer II went from losing 2 seconds a day to gaining less than a second to losing less than a second per day in a few months. My IWC Pilot Chrono went from perfect (I mean it was perfect) to minus 1 second per day two weeks ago - it was running at this rate since August.

What causes this?

They are pure mechanical devices, tiny little amazingly precise machines. They are affected by temperature, humidity, internal wear, spring tension, orientation of the movement etc... The better the movement the less they are affected by all of the above.
The joy of owning mechanical watches, is in knowing the precision required of that tiny little machine to keep accurate time despite all of the variables. The better the movement, the more accurate, reliable, stable, rugged and long lasting the watch will be.



Paul

PS. My 1967 1016 (Explorer 1) runs at +4sec a day.

[Moto]

Originally Posted by aleeboy

Is it normal for watches to change their daily variation rates? My Explorer II went from losing 2 seconds a day to gaining less than a second to losing less than a second per day in a few months. My IWC Pilot Chrono went from perfect (I mean it was perfect) to minus 1 second per day two weeks ago - it was running at this rate since August.

What causes this?

The parts wear, and the lubrication in the movement changes slightly over time. This causes small variations in accuracy. What you describe is normal. I would only get very concerned if the watch fell completely out of spec, or if the accuracy changed suddenly. Sudden changes in the performance of any machine are a very bad sign.

[newrolexman]

GMT ll C

was off -6 a day when new


had it regulated at RSC

for the past 8 months

less then - 1/2 second a day

sometimes in a month its perfect


i check it to the atomic clock weekly


amazing ,, its more accurate then any of my quartz watches.


d