Which grade of 2824-2?

[ijha]

Happy Holidays! Everyone.

I've been searching the web to find out which grade of ETA 2824-2 is used in Sinn watches, especially in 556/656 models. But, I haven't found any definitive answer to this. Only thing that seems to be agreed in general is that Sinn does not use COSC-level 2824.

I guess someone must have gotten an official answer from Sinn directly. or Do watch companies usually not reveal this type of information?

Thanks,

[CMSgt Bo]

Happy Holidays! Everyone.

I've been searching the web to find out which grade of ETA 2824-2 is used in Sinn watches, especially in 556/656 models. But, I haven't found any definitive answer to this. Only thing that seems to be agreed in general is that Sinn does not use COSC-level 2824.

I guess someone must have gotten an official answer from Sinn directly. or Do watch companies usually not reveal this type of information?

Thanks,

First of all, ETA finishes their 2824-2 movements to Standard, Elaboré, Top and Chronometre grades (with, and without COSC certification), and 2892-2 movements to only Elaboré, Top and Chronometre grades (with, and without COSC certification). As a rule, Sinn uses only Top grade 2824-2 movements. There have been unsubstantiated reports of Sinn temporarily using Elaboré grade movements in some 556 and 656 models when Top grade movements became scarce (in late 2007). Of course I cannot confirm nor deny those reports.

[ijha]

First of all, ETA finishes their 2824-2 movements to Standard, Elaboré, Top and Chronometre grades (with, and without COSC certification), and 2892-2 movements to only Elaboré, Top and Chronometre grades (with, and without COSC certification). As a rule, Sinn uses only Top grade 2824-2 movements. There have been unsubstantiated reports of Sinn temporarily using Elaboré grade movements in some 556 and 656 models when Top grade movements became scarce (in late 2007). Of course I cannot confirm nor deny those reports.

Thanks a lot CMSgt Bo. Your reply clears up everything I think. One quick question though. I wonder how each grade of 2824 can be distinguished. I mean, is there any way to tell, let's say, an elabore-grade one from a top grade one by means of serial number or parts that are used?

Thank you.

[CMSgt Bo]

Thanks a lot CMSgt Bo. Your reply clears up everything I think. One quick question though. I wonder how each grade of 2824 can be distinguished. I mean, is there any way to tell, let's say, an elabore-grade one from a top grade one by means of serial number or parts that are used?

Thank you.

At a glance, no...in performance, certainly. I think Wikipedia says it far better than I ever could:

ETA 2824-2

One workhorse of the ETA mechanical line is the ETA 2824-2, The 2824 is an automatic winding, twenty-five (25) jewel movement, available in four executions or grades: Standard, Elaborated (improved), Top and Chronometer. The key components which differ at the line of demarcation between Elaborated and Top are the barrel spring, shock protection system, pallet stones, balance wheel & hairspring and the regulator mechanism. To illustrate the differences in accuracy garnered by the successive grades, consider the following specifications:

• the Standard grade is adjusted in two positions with an average rate of +/-12 seconds/day, with a maximum daily variation of +/-30 seconds/day;
• the Elaborated grade is adjusted in three positions with an average rate of +/-7 seconds/day, with a maximum daily variation of +/-30 seconds/day;
• while the Top grade is adjusted in five positions with an average rate of +/-4 seconds/day, with a maximum daily variation of +/-10 seconds/day.

The Chronometer grade must meet strict standards prescribed by the COSC. Chronometer grade movements are serial numbered as that is a requirement of the certification authority. Moreover, it should be noted that the degree of decoration on the movement's parts, generally only an aesthetic improvement, increases as well with the grade.

[MrOmega]

email extract - from Sinn. dtd 2009.

"
Dear ****,

thank you for your e-mail. The movement grade of model 656 is Elaboré.

Kind regards from Frankfurt"


i emailed Sinn.

[CMSgt Bo]

email extract - from Sinn. dtd 2009.

"
Dear ****,

thank you for your e-mail. The movement grade of model 656 is Elaboré.

Kind regards from Frankfurt"

i emailed Sinn.

It's official! Thanks for doing the leg-work on this one Mr O.

[Janne]

So if i crack open my U2, I can not see which grade it is?

[CMSgt Bo]

So if i crack open my U2, I can not see which grade it is?

I guess you could if you had a trained eye and knew the differences between the barrel springs, shock protection systems, pallet stones, balance wheels, hairsprings, and the regulator mechanisms between the different grades.

[MrOmega]

It's official! Thanks for doing the leg-work on this one Mr O.

Thanks for the compliment...as owners of fine watches, we would love to see where the $$ goes to into the watches...

[bjp]

email extract - from Sinn. dtd 2009.

"
Dear ****,

thank you for your e-mail. The movement grade of model 656 is Elaboré.

Kind regards from Frankfurt"

i emailed Sinn.

I always wondered how much stock I could put in Watchbuys' answer when I asked that question (the reply was that Sinn uses Top Grade movements in all their watches).

Now, I think, I know. Too bad.

-ben