New 5905P: Can I use the chrono as a seconds counter?

[D.O.]

Good day All,

I recently picked up a 5905P & thinking about using the chrono as a seconds counter, (basically just starting it and letting it run continuously so it serves as the seconds hand).

I will rarely, if ever, use the chrono so thinking of this but concerned it may affect the movement. any advice would be appreciated.

Regards,

D.O.

[rolex_addict]

No harm whatsoever ,, just enjoy your gorgeous patek!

[RussW]

It's a flyback chrono, and that is exactly how it's intended to be used. The chrono is friction free and will cause no harm.

[HL65]

Absolutely and congrats D! Welcome to TRF and good to have you here my friend.

[MCMartiny]

My Patek AD told me that the 5905 had been specifically designed for this use case. So don't worry and enjoy your fantastic watch.

[Psmith]

Welcome and congrats

[D.O.]

Originally Posted by rolex_addict

No harm whatsoever ,, just enjoy your gorgeous patek!

thank you for the feedback :-)

[D.O.]

Originally Posted by RussW

It's a flyback chrono, and that is exactly how it's intended to be used. The chrono is friction free and will cause no harm.

ahhhh...i was not aware a flyback chrono was intended to be used this way. you learn everyday, thank you.

[D.O.]

Originally Posted by Psmith

Welcome and congrats

thank you!

[D.O.]

Originally Posted by MCMartiny

My Patek AD told me that the 5905 had been specifically designed for this use case. So don't worry and enjoy your fantastic watch.

thats very helpful, thank you for that feedback i was worried just letting it run and run would wear the movement out. appreciate it.

[D.O.]

Originally Posted by HL65

Absolutely and congrats D! Welcome to TRF and good to have you here my friend.

thank you sensei. joined a few months back and have just been reading up but figured this was a good time to jump in. :-)

[D.O.]

Originally Posted by RussW

It's a flyback chrono, and that is exactly how it's intended to be used. The chrono is friction free and will cause no harm.

thank you for that, was not aware a flyback chrono was specifically designed for this purpose. you learn everyday. cheers

[goog53]

Great to have you here. Love your IG feed

[mps354]

Would love to see some pics when you have a chance, it's an amazing reference!

[Socal to az]

Congrats. I have a 5905 and I have yet to let it run with the seconds hand but you can easily do this as others have stated.

Did you get blue or black?

[watchucallit]

I love that watch... If not for owning the 5960.. would be on the top of my list. Congrats

[D.O.]

Originally Posted by goog53

Great to have you here. Love your IG feed

Thank you for the welcome and kind words ��

[D.O.]

Originally Posted by mps354

Would love to see some pics when you have a chance, it's an amazing reference!

Thank you. I'll take a few pictures for you now and post below (once I figure out how to do it) hahaha

[D.O.]

Originally Posted by Socal to az

Congrats. I have a 5905 and I have yet to let it run with the seconds hand but you can easily do this as others have stated.

Did you get blue or black?

Thanks alot for the feedback. I got the blue. Have a few black watches so wanted to switch it up. The blue dial is so VIBRANT:-)

[D.O.]

Originally Posted by watchucallit

I love that watch... If not for owning the 5960.. would be on the top of my list. Congrats

Thank you. I was actually going for the black dial 5960P at first but decided to go with this due to the larger size and I prefer the 42mm as I have a 5070R and the size was one of the things that swayed me towards to the 5070.

[Socal to az]

I have blue also- it's stunning.

[D.O.]

pictures attached.

[mps354]

Very nice, thanks!

[RussW]

Originally Posted by D.O.

thank you for that, was not aware a flyback chrono was specifically designed for this purpose. you learn everyday. cheers

Just to clarify a little - technically a flyback chrono is for timing lap times. BUT with the Pateks using this chrono caliber the idea is to use the chrono as a running seconds, and then when you want to time something then use the flyback to reset and start timing.

Ps I meant to say earlier, welcome to the forum and congrats on a great watch

[D.O.]

Originally Posted by RussW

Just to clarify a little - technically a flyback chrono is for timing lap times. BUT with the Pateks using this chrono caliber the idea is to use the chrono as a running seconds, and then when you want to time something then use the flyback to reset and start timing.

Ps I meant to say earlier, welcome to the forum and congrats on a great watch

aha...gotcha. makes sense. thank you for the clarifications and welcome. cheers. :-)

[Rushwarp]

Originally Posted by RussW

Just to clarify a little - technically a flyback chrono is for timing lap times. BUT with the Pateks using this chrono caliber the idea is to use the chrono as a running seconds, and then when you want to time something then use the flyback to reset and start timing.

Ps I meant to say earlier, welcome to the forum and congrats on a great watch

Actually, the flyback chrono function was origincally devised for pilots, and later came into use for rally navigators too.

The difference between a normal chrono and a flyback is that the flyback can be reset to 12 (zero) and continue running without having to stop the chrono first, reset the chrono hand and then restart the chrono for the next segment.

The stopping/resetting/restarting of the normal chrono meant that navigational waypoints could add up to large miscalculations if traveling at high speeds during the few seconds this takes (each time, for each waypoint).

Using the running flyback all the time is in practice only good for timing very short events, as it takes several seconds to read the total minutes and hours off. If you push the flyback, this info will be immediately 'erased' as it were.

[JorgeCCW]

welcome to the forum and Congrats

[watch-guy.com]

As I understand , a fly back has only one button for resetting the second hand

The reason this movement ( and the 5235 amongst others ) can be run continuously is because it is a vertical clutch chromo and running the chrono function does nor reduce the power reserve - as apposed to other chronos which run off a horizontal clutch - the older Lemania such a ref 5070 etc ar ebukt this way

Congrats on your new watch

Julian

[raclaims]

My buddy got the same watch several months ago...I was never wowed in pix but man in person I freakin' love it...great presence on the wrist and just looks fabulous.

Congrats!

[Rushwarp]

Originally Posted by watch-guy.com

As I understand , a fly back has only one button for resetting the second hand

The reason this movement ( and the 5235 amongst others ) can be run continuously is because it is a vertical clutch chromo and running the chrono function does nor reduce the power reserve - as apposed to other chronos which run off a horizontal clutch - the older Lemania such a ref 5070 etc ar ebukt this way

Congrats on your new watch

Julian

Hi all,
I am new here and don't mean to be a pain in the xxx, but neither of these statements are true....

Flybacks normally (classically) always have 2 pushers....Because you need one to stop/reset in any case! Perhaps you are thinking of the monopusher?

Monopushers = chronographs with one pusher, do it all with one pusher, but are somewhat rare and do not have flyback function (unless there is a very rare movement hidden somewhere in the mountains of CH I never heard of?)

Vertical clutch or engaging wheels - both use the energy of the movement up.
There is no difference between them in energy use. Why?

Becuase the clutch, or the engaged wheel is simply transferriing the energy of the going train through to the (chronograph) part of the movement. Either system is nothing more than a 'connector' as it were. Like plugging a lightbulb into the grid. The plug can be an EU or UK connector, analagous to the vertical or engaging mechanism...The lamp still draws more electricity once it is connected

Once 'anything' is connected (engaged) to a watch's (normal) going train of hours minutes (and seconds if available), it starts to drain energy.

Anyway, as most chronos today are automatics (some early Rolexes and othes were not!) this will have little or no effect on your watch's accuracy.

For myself anyway, part of the fun in collecting is finding out more about what's inside..