Power reserve on DJ41

[Dennisoul]

My DJ41 126334 is just back from a service and after a full wind and laid to rest has just ran for 79 hours 45 mins, anyone else found the power reserve to be beyond the 70 hours mark….I find it quite incredible

[Oxfordian]

Never tested it, just wind it and wear it.

[saxo3]

Originally Posted by Dennisoul

My DJ41 126334 is just back from a service and after a full wind and laid to rest has just ran for 79 hours 45 mins, anyone else found the power reserve to be beyond the 70 hours mark….I find it quite incredible

This would be 14% above Rolex specs (approx. 70 hours). Your 79 hours + 45 min sounds odd. You are sure?
I have never measured a power reserve far above 72 hours.

[Mystro]

No. Out of 6 different 32 series I have tested only one went above 72 hours at 72:40. I seriously would retest if I got 79+ hours in a 32 series movement. Only my dual barrel mainspring in my Panerai 661 Carbotech with P.9010 got better than that at 80:15.

[Jackie Daytona]

Originally Posted by Dennisoul

My DJ41 126334 is just back from a service and after a full wind and laid to rest has just ran for 79 hours 45 mins, anyone else found the power reserve to be beyond the 70 hours mark….I find it quite incredible

I haven’t officially timed it because I don’t really care that much. But I usually use my DJ 41 on the weekends but I take it off Sunday night and it makes it all the way around Thursday sometime. It’s pretty impressive.

[CharlesN]

79+ is outstanding
How is the timekeeping for the last 24 hours ?
Does it “Drop off” quite rapidly

[gnuyork]

Off-topic a bit (sorry), I tested my new Speedmaster movement rated at 50 hours and I got 64 hours and 23 minutes. Keeping accurate time until at least 60 hours (not sure for how long the accuracy remained because I went to bed). Remarkable in my opinion, not to mention the accuracy of the movement which is also remarkable (mine has been averaging +0.4 spd).

Sorry for the Omega content in a Rolex thread. I just wanted to share.

[MikeyV]

Mine has run past the 70 hours anytime I've tested it. Usually 72 or 73 hours.
This would from, just wearing, no manual winding.

FWIW my Pelagos ran for 74 hours too, only autowind, after I took it off after vacation.

[214270Explorer]

Are you certain you correctly measured the interval?
(I did miscalculate once, so I know it is possible.)
79 sounds not realistic.
My other Rolex do not go "much" beyond their PR specs.

[saxo3]

Originally Posted by CharlesN

79+ is outstanding
How is the timekeeping for the last 24 hours ?
Does it “Drop off” quite rapidly

The measurement data are here.

https://www.rolexforums.com/showpost...postcount=1888

No numbers after 60 hours.

[Dennisoul]

Originally Posted by 214270Explorer

Are you certain you correctly measured the interval?
(I did miscalculate once, so I know it is possible.)
79 sounds not realistic.
My other Rolex do not go "much" beyond their PR specs.

100% sure….full wind 9am on Monday morning as was testing at various intervals on the timegrapher after being serviced, the watch was laid at rest dial up between measurements…..the watch eventually stopped at 16:45 today Thursday. Follow the link from Saxo’s post #10 above for results up to 60 hours. I didn’t do any other measuring after that other than let the watch run to a stop as I wanted to see what power reserve it had


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[Dennisoul]

Originally Posted by CharlesN

79+ is outstanding
How is the timekeeping for the last 24 hours ?
Does it “Drop off” quite rapidly

Only up to 60 hours Charles…..let the watch run to a stop after that to check the power reserve …follow Saxo’s link in post #10 for those results


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[Dennisoul]

Originally Posted by Dontknow

I haven’t officially timed it because I don’t really care that much. But I usually use my DJ 41 on the weekends but I take it off Sunday night and it makes it all the way around Thursday sometime. It’s pretty impressive.

Sounds like your DJ41 runs at the same level of power reserve….yes defo impressive


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[Soultime]

You need to get your timing right Andy....... ready for dancing to some tunes, now the clubs are open ��

Sorry......off topic but just noticed your avatar.
Ex Casino frequenter in my youth. Still big into Soul, more Modern / Jazz / Soulful House etc nowadays.

Right, back on topic...

[CharlesN]

Originally Posted by Dennisoul

Only up to 60 hours Charles…..let the watch run to a stop after that to check the power reserve …follow Saxo’s link in post #10 for those results

I had seen the results that saxo3 posted but I was just hoping that you would have continued to take and to post measured results for the full time of running.

As you did the 5 positions throughout several times I am wondering if that perhaps caused a small amount of winding ?
Could that have skewed the results at all ?