Back to the shop goes my Pelagos....

[phils]

When I bought it last August it gained 10 seconds/day. The AD adjusted it to about -4 seconds/day and that held for awhile.
Now it loses -8 to -17 seconds/day.
Something is goofy here. I just hope they can fix it as I really do like it.
My 16610 Sub. is +3 to 4 seconds/day.

[sturgeon123456]

Its not chronometer certified so I wouldn't expect the same accuracy as a Rolex that is

[kilyung]

Originally Posted by sturgeon123456

Its not chronometer certified so I wouldn't expect the same accuracy as a Rolex that is

COSC certification isn't anything special. Any time piece (I had a 60 year old pocket watch that put some of my Rolexes to shame) can be just as accurate. The 2824 movement in the Pelagos comes in a variety of grades from ETA.

The performance STANDARDS are the big differences between the various grades:

Standard:
2 positions (CH, 6H)
daily rate: +/-12 sec/day
Maximum positional variation: 30 sec
Isochronism (between 0 and 24 hours): +/- 20 sec

Elabore:
3 positions (CH, 6H, 9H)
daily rate: +/-7 sec/day
Maximum positional variation: 20 sec
Isochronism (between 0 and 24 hours): +/- 15 sec

Top:
5 positions (CH, FH, 6H, 9H, 3H)
daily rate: +/-4 sec/day
Maximum positional variation: 15 sec
Isochronism (between 0 and 24 hours): +/- 10 sec

Chronometre:
As per COSC specifications isn't much different from Top grade.

The grade differences are listed below.

Standard and Elabore:
Mainspring - Nivaflex NO
Shock protection - Etachocs
Pallet stones - Polyrubies, Epilame-coated
Balance - Nickel gilt
Balance staff - Epilame coated
Collet - Nivatronic
Hairspring - Nivarox 2
Hairspring heat treatment - Etastable

Top and Chronometre:
Mainspring - NivaflexNM
Shock protection - Incabloc
Pallet stones - Red rubies, Epilame-coated
Balance - Glucydur gilt
Balance staff - Epilame coated
Collet - Nivatronic
Hairspring - Anachron
Hairspring heat treatment - Etastable

[Dan Pierce]

Originally Posted by sturgeon123456

Its not chronometer certified so I wouldn't expect the same accuracy as a Rolex that is

Even though Tudor uses chronometer grade movements certification has nothing to do with it.
dP

[trumpedaces]

Originally Posted by sturgeon123456

Its not chronometer certified so I wouldn't expect the same accuracy as a Rolex that is

ditto on this. The ETA movements are notorious for this. My Black Bay ran +12. Beautiful watches if you can get over the accuracy. Mine are worn in rotation, so I don't usually notice.

[kilyung]

Originally Posted by trumpedaces

ditto on this. The ETA movements are notorious for this. My Black Bay ran +12. Beautiful watches if you can get over the accuracy. Mine are worn in rotation, so I don't usually notice.

It's not very fair to make such sweeping statements. I doubt Rolex would have decided to use the top shelf ETA movements for Tudor if such a reputation was warranted. My Pelagos consistently performed +1.

[The Joker]

Originally Posted by kilyung

It's not very fair to make such sweeping statements. I doubt Rolex would have decided to use the top shelf ETA movements for Tudor if such a reputation was warranted. My Pelagos consistently performed +1.

Same here, Been like that for 2 years now.

[Old Expat Beast]

My THC runs plus or minus one second depending on overnight positioning. It's more accurate in that way than most of my Rolexes.

But is Tudor using Chronometer grade or Top grade ETA nowadays?

[busytimmy]

Originally Posted by kilyung

COSC certification isn't anything special. Any time piece (I had a 60 year old pocket watch that put some of my Rolexes to shame) can be just as accurate. The 2824 movement in the Pelagos comes in a variety of grades from ETA.

The performance STANDARDS are the big differences between the various grades:

Standard:
2 positions (CH, 6H)
daily rate: +/-12 sec/day
Maximum positional variation: 30 sec
Isochronism (between 0 and 24 hours): +/- 20 sec

Elabore:
3 positions (CH, 6H, 9H)
daily rate: +/-7 sec/day
Maximum positional variation: 20 sec
Isochronism (between 0 and 24 hours): +/- 15 sec

Top:
5 positions (CH, FH, 6H, 9H, 3H)
daily rate: +/-4 sec/day
Maximum positional variation: 15 sec
Isochronism (between 0 and 24 hours): +/- 10 sec

Chronometre:
As per COSC specifications isn't much different from Top grade.

The grade differences are listed below.

Standard and Elabore:
Mainspring - Nivaflex NO
Shock protection - Etachocs
Pallet stones - Polyrubies, Epilame-coated
Balance - Nickel gilt
Balance staff - Epilame coated
Collet - Nivatronic
Hairspring - Nivarox 2
Hairspring heat treatment - Etastable

Top and Chronometre:
Mainspring - NivaflexNM
Shock protection - Incabloc
Pallet stones - Red rubies, Epilame-coated
Balance - Glucydur gilt
Balance staff - Epilame coated
Collet - Nivatronic
Hairspring - Anachron
Hairspring heat treatment - Etastable

You're awesome. Nice post

[waterman1]

Just noted to myself yesterday my Pelagos runs dead on, whereas dssd is +6 sec and SDc is -5 sec per day. Pelagos is 4 mos old.

[bayerische]

Originally Posted by kilyung

It's not very fair to make such sweeping statements. I doubt Rolex would have decided to use the top shelf ETA movements for Tudor if such a reputation was warranted. My Pelagos consistently performed +1.

Must agree. Nothing wrong accuracy wise with ETA movements. As accurate as Rolex.

Usually it's down to regulation, but you watch (OP) may have something wrong with it. Sure it will be fixed.

[watchwatcher]

With all the data given, it sure sounds like your watch is not performing up to standard...good luck and hope you get it sorted out.

[Nycturbovr6]

I would take it in also