Daytona running indefinitely?

[Porsche91101]

can you leave chrono second hand running all the time and screw back the pushers to ensure water resistance? or does the pusher need to be unscrewed for it to run? Thanks!

[kritameth]

Y. N.

[padi56]

Originally Posted by Porsche91101

can you leave chrono second hand running all the time and screw back the pushers to ensure water resistance? or does the pusher need to be unscrewed for it to run? Thanks!

You might lose a few hours of power reserve with the crono function running continuously,and screwvdown pushers have nothing to do with any W/R all they are for is to stop activating the chrono when not needed to time something.

[jamesgames]

the screwdown just prevents you from pushing again, helpful esp underwater. They can be screwed down while the chrono second hand is running.

[garyk]

That's one I've never explored?!

[Tools]

Originally Posted by Porsche91101

can you leave chrono second hand running all the time and screw back the pushers to ensure water resistance? or does the pusher need to be unscrewed for it to run? Thanks!

You can if you want, but it serves no useful purpose.

As mentioned, adding the chrono into the work-cycle will draw down the power reserve a bit and slightly alter timing - you don't get something for nothing in physics.

Also, as mentioned, the screwdowns are lock-nuts only; no affect on water resistance at all, they simply keep them from being pushed while under water..

[LarryB]

I have a 116520 and notice whenever running the chrono second hand the watch will stop keeping time in the middle of the night when I am not wearing it. I typically wear it all day and take off before bedtime.

It would be nice if it could run all of the time.

[Edwardfry3]

You can leave the chronograph second hand running all the time, but it's important to ensure that the pushers are properly screwed down to maintain water resistance.

[cornerstore]

I’ve tried it a few times and I find it seems to slow the watch down outside of normal plus or minus.

[Calatrava r]

'Since 1965, screw-down pushers have gradually replaced the non-screw-down versions of the original models, helping to further reinforce the waterproofness of the case.'

This is from the Rolex website. If you intend to keep the chrono running in water, I would tighten the screw down pushers as you suggested.

[77T]

I believe Rolex's website left out a phrase that would have illuminated how screw down pushers "reinforce" water resistance.

The phrase "by avoiding activation of the pusher in water" helps non-WIS understand better.


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[mpkRolex]

Originally Posted by Tools

You can if you want, but it serves no useful purpose.

As mentioned, adding the chrono into the work-cycle will draw down the power reserve a bit and slightly alter timing - you don't get something for nothing in physics.

Also, as mentioned, the screwdowns are lock-nuts only; no affect on water resistance at all, they simply keep them from being pushed while under water..

Thanks as I was looking for this answer as well

[mpkRolex]

Originally Posted by LarryB

I have a 116520 and notice whenever running the chrono second hand the watch will stop keeping time in the middle of the night when I am not wearing it. I typically wear it all day and take off before bedtime.

It would be nice if it could run all of the time.

I had left them running last night so in total for about 14-15 hours and the watch was still running. I think the 72 hours reserve helped. I wear like you just during the day time.

[fabR]

Was told to me from a Rolex technician better not , reason why the system can be worn-out easily
i m just repeating

[Tools]

Originally Posted by fabR

Was told to me from a Rolex technician better not , reason why the system can be worn-out easily
i m just repeating

This is actually true for some chronographs. The chrono on some is an add-on module and isn't designed into the overall lube/geartrain operation.

The Daytona is a ground-up integrated chronograph design and the chrono part gets the same lube and mechanical integrity as the rest of the movement.

[Henrimontgomery]

Do what you want, life is meant to be enjoyed.

As other said, you’re going to use more energy and then see the watch lose accuracy/reserve faster than otherwise.

[fabR]

good poin
thanks Tools