Datejust 41 Power Reserve

[redimp]

Hi all, out of interest I decided to check the power reserve on my Datejust 41 and find after a range of tests covering manual winds between 40 and 60 my DJ41 achieved 64-65 hours. I believe the power reserve on the DJ41 is specified to be 70 hours how accurate is this.

[padi56]

Originally Posted by redimp

Hi all, out of interest I decided to check the power reserve on my Datejust 41 and find after a range of tests covering manual winds between 40 and 60 my DJ41 achieved 64-65 hours. I believe the power reserve on the DJ41 is specified to be 70 hours how accurate is this.

To fully wind it needs 60 plus full crown turns clockwise only,then should run between 65-70 hours off wrist give or take a hour or so.

[Jster]

A few weeks ago I checked mine. I wound it for 60 turns and I got 70 hours out of it.

[fiendfx]

Originally Posted by Jster

A few weeks ago I checked mine. I wound it for 60 turns and I got 70 hours out of it.

I had made a thread regarding this. Now I got my answer.
60 wounds is a lot. While in the booklet states 20 wounds. Figures why it died soo early.

[duc888]

A bit more then 30 wounds seems to be enough and my DJ runs 70 hours.

[Jster]

Originally Posted by fiendfx

I had made a thread regarding this. Now I got my answer.
60 wounds is a lot. While in the booklet states 20 wounds. Figures why it died soo early.

Yeah I did 60 turns to assure I got it fully wound. There were times I put it back in the box after wearing it, and not winding it, and the reserve was around 60 hours. I'm assuming is was not fully wound just by wearing it.