A question for all 4130 Daytona owners

[Ironstark]

Since I spend so much of my time taking these apart and I see what wears etc.. I wondered how many of you run the chronograph constantly as a centre seconds?
Do those who do find it affects the timekeeping?

[JJ Irani]

Originally Posted by Ironstark

Since I spend so much of my time taking these apart and I see what wears etc.. I wondered how many of you run the chronograph constantly as a centre seconds?

Welcome to TRF. That's a question I've asked like a dozen times on TRF.

According to one of our senior experts, Padi.....it's okay to keep the Chrono function running. Personally, I hate looking at a watch face with a stationary second hand. Drives me nuts!!

What is your opinion on this?

Thanks - JJ

[Ironstark]

The chronograph mechanism is not designed to run constantly.
If it is, certain components in the chronograph mechanism can wear much more quickly than they would normally. This can affect the timekeeping and the power reserve adversly. The main reason Daytonas are returned under warranty is because of this wear and it`s effects.
The friction spring on the centre seconds chronograph wheel wears and affect the amplitude of the balance wheel and consequently the timekeeping and power reserve.

[JJ Irani]

Originally Posted by Ironstark

The chronograph mechanism is not designed to run constantly.
If it is, certain components in the chronograph mechanism will wear much more quickly than they would normally. This can affect the timekeeping and the power reserve adversly. The main reason Daytonas are returned under warranty is because of this wear and it`s effects.

Probably a good reason for me to NEVER consider a Daytona or any other Chronograph for that matter.

How about if a user keeps the Chrono running during the day but turns it off at night? Would that help?

JJ

[Ironstark]

Originally Posted by JJ Irani

Probably a good reason for me to NEVER consider a Daytona or any other Chronograph for that matter.

How about if a user keeps the Chrono running during the day but turns it off at night? Would that help?

JJ

It should reduce it since it would only be on half as long.
To be honest without getting figures from Geneva I don`t know what percentage of the total Daytona`s sold it affects.
Other chronographs I have worked on dont use the same friction spring design so I have no idea wheather they would be affected in the same way.

[JJ Irani]

Originally Posted by Ironstark

It should reduce it since it would only be on half as long.
To be honest without getting figures from Geneva I don`t know what percentage of the total Daytona`s sold it affects.
Other chronographs I have worked on dont use the same friction spring design so I have no idea wheather they would be affected in the same way.

Thanks for the info. I'm sure a number of Daytona users on this forum would be keen to know the final outcome of your findings.

Cheers - JJ

[Ironstark]

I`m curious to know the answer too, it`s a question I have wanted to ask clients but I don`t deal with the clients just their watches.