Rolex time not consistently gaining and losing time

[CBR900RR]

1985 Rolex datejust 16014, time not consistently gaining and losing.

Gaining time when wearing it at work.

Losing time when not using during my days off.

Also gain time when not using but wind up every 2 days.

At the end of my days on / off rotation, time are still within 20 sec plus or minus, is this a normal behavior for rolex watch?

[Talon]

Absolutely normal behaviour. Mine has been losing time AS it's gaining time. It's ridiculous!

[JMGoodnight369]

Yeah this is pretty standard behavior. The accuracy of a movement depends on the position of gravity pulling down on it. Usually dial up positions will speed a movement up, while crown up or down will cause them to slow. Every watch is a little different tho. I will try out different resting positions using a timing app to see which ones work best for self regulation. The watch also could use a service and regulation if it hasn’t been in a while.

[CBR900RR]

thanks for the reply.

[CKLinLA]

I also have a 16014 (circa 1983/84) and my experience has been its time keeping is consistent; no variance between on wrist vs off wrist.

In general my other Rolex pieces are also that way.

I do find that my Seikos do tend to keep time differently between on-wrist and off-wrist.

Maybe my experience links to the way I keep the watch when off-wrist. Generally, though not always, in dial up position

[padi56]

Originally Posted by CBR900RR

1985 Rolex datejust 16014, time not consistently gaining and losing.

Gaining time when wearing it at work.

Losing time when not using during my days off.

Also gain time when not using but wind up every 2 days.

At the end of my days on / off rotation, time are still within 20 sec plus or minus, is this a normal behavior for rolex watch?

Gravity affects mechanical watches the most thats why they are tested in 5 different positions.And in those different positions there will be slight deviations in the timekeeping..Remember this the escapement of a mechanical watch in 24 hours pushes the gears 432,000 times. Since a day has 86,400 seconds.A finer mechanical watch that gains or loses about six to nine seconds a day or about a minute a week has a breathtaking precision of over 99.99 per cent. This is very high precision, given the fact that the movement is constantly affected by the earth's gravity, metal expansion and contraction, temperature variations,mainspring power reserve, subtle changes in lubrication and friction, shocks on wrist wearing,owners wearing habits, and so on.The fact is that no mechanical watch made will keep perfect time, very close yes but perfect no.The COSC spec is a average of -4 to +6 over 24 hours..So most Rolex are 99.994% accurate what more could anyone ask from a mechanical watch.Have you ever given your watch a full manual wind say 40 full crown turn clock wise.?Because when wearing with low activity you are not winding your watch enough that could have a effect on over all timekeeping with your wearing routine sound normal..