Automatic Tag link - tachymetre power drain ?

[graeme4130]

Hi all
My 2012 Tag link automatic Tachymetre chronograph has the permanently running second hand on the dial at the 9oclock and the main second hand reserved for when I start the tachymetre function (this tests at 12)
I Prefer to have the larger second from hand from the tachymetre running all the time, but wondered if this would affect the power reserve or anything else if I just left it permanently on
Could anyone shed any light on this please ?
Cheers
Graeme

[Hoofy]

Of course it will! But it's an automatic watch so shouldn't be a problem unless you leave it standing for days. One other aspect to consider is wear on the gears...

Also it will stop after its maximum measuring capabilities (in the order of hours).

[Ikemi]

Hoofy said:

Of course it will! But it's an automatic watch so shouldn't be a problem unless you leave it standing for days. One other aspect to consider is wear on the gears...

It's minimal though. I believe Omega quote a 2% loss (over 42-44 hours) when running the chronograph continuously. However as Hoofy says, if you're wearing the watch, you won't notice any difference. Your movements will keep the mainspring wound via the weighted rotor in the back of the watch I do believe there is a minimal change in accuracy if the chronograph is left running ... ?

Hoofy said:

Also it will stop after its maximum measuring capabilities (in the order of hours).

The movement in the Link (or the 7750 in my Glycine) continues after 12 hours ... It just looks as though it's started again!

[Spice_Weasel]

Last week on my skiing holiday I noticed that my mate had done this with his TH Carrera. He had synched the chrono second hand with the second hand at the 9 o clock subdial. I meant to mention it but ended up chatting with another mate about his grandad's old Rolex.

For anyone passing through Munich airport, there is a fantastic watch boutique there as well as another store selling the usual high street brands.

[GC8]

Doesnt the owners manual tell you not to leave the chronograph running? Mine do.

FYI - the tachymeter is the scale around the bezel, not the movement type. The 1/5th of a second measuring and recording subsystem (large 'second' hand and the minute and hour registers) is the chrohograph.