The SELLITA SW200 vs ETA 2824 thread - Page 6
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Thread: The SELLITA SW200 vs ETA 2824 thread

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  1. #51
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    Re: The SELLITA SW200 vs ETA 2824 thread

    delete, repost
    Last edited by colgex; October 15th, 2014 at 04:44. Reason: accidental repost

  2. #52
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    Re: The SELLITA SW200 vs ETA 2824 thread

    I saw this article, have not seen it posted before.

    For many years, Sellita operated as one of ETA’s major out-sourced assembly operations for their 2824 movements.
    They would receive 2824 movement kits from ETA and assortments from Nivarox directly (now part of the Swatch Group) and simply add wheels and screws and sell the movements to many famous Swiss watch brands as ETA 2824-2 movements, which in effect they were.
    When it was announced that ETA would no longer be providing unfinished movement kits, this threatened Sellita’s survival as a business. Their solution was to buy the parts from suppliers outside the Swatch Group with the exception of Nivarox who, as a result of the long-standing relationship over 50 years, they continued to use. At first, they weren’t sure if they would have IP issues if they copied the movement exactly so they re-engineered the movement, changing some minor details These changes, although minor, added up to reduced reliability in the pre-series movements and so, Sellita decided (having now learned that there were no remaining patents for the 2824) to return almost entirely to the ETA movement design.
    We started to use Sellita’s SW200 ( the name for Sellita’s 2824-2) at this point and, having checked the performance of each subsequent delivery of both movements, we are able to confirm the movement performance exactly matches the ETA.
    Aesthetically, the movements are identical and difficult to separate and the only significant difference is in the number of jewels. Sellita added a 26th jewel on the upper side of the barrel axis which sits just below the ratchet wheel. This jewel slightly reduces the friction associated with automatic winding. However, as the ETA movement has never had a problem of reliability in this regard, it is my view that this is most likely a marketing device used by Sellita to create some separation from the ETA movement although one could make a case for the small benefit in reliability the adjusted jewel height gives.
    Overall, however, the two movements are so identical in every aspect, it is difficult to have a meaningful discussions about the differences.

    Johannes Jahnke

    The ETA v Sellita Story
    enricodepaoli and BarracksSi like this.

  3. #53
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    Re: The SELLITA SW200 vs ETA 2824 thread

    I am uncertain which movement my new Aquaracer Cal 5 300 comes with, any advice?

  4. #54
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    Re: The SELLITA SW200 vs ETA 2824 thread

    Quote Originally Posted by Tman10 View Post
    I am uncertain which movement my new Aquaracer Cal 5 300 comes with, any advice?
    Depending on age, it could be either a 2824 or a SW200. Both are of similar (excellent) quality and are functionally identical. The only way to know is to look (with a loupe) at the plate under the balance wheel, where the movement maker put their mark. ETA uses a shield logo and Sellita uses a stylized S logo. The caliber numbers will be stamped there, too.

    Rick "probably an SW200 if it's new" Denney
    Zenith: Captain Chronograph 03.2110.400*; Cartier: Santos 100 XL Concord: Mariner, C1 Big-Date, C1 v.2 Chronograph; Ebel: Chronosport 1134901, Tekton 9137L83*, Type E 9137C41* (*=COSC)
    Ebel: 1911 BTR 9137L73* and 9139L71*, 1911 1120L41*, 1911 Senior 9080241, Brasilias 9120M41 (2), Aquatica 500 9120K61, Classic Hexagon GMT 9301F61, Classic 100 LE 9120R41; Baume & Mercier: Capeland World-Timer
    Heuer: Carrera 1964 Re-Edition CS3110; Maurice Lacroix: Masterpiece MP6439; "Seagull": 1963 Reissue cal. ST19; Seiko: Black Monster SRP307; Poljot: Sturmanskie cal. 3133; Tissot: T-Touch Lew and Huey: Acciona
    Vintage: JLC: ref. 2953, ca. 1946; Longines: Flagship cal 285; Zodiac: SST cal. 86, Aerospace GMT cal. 72; Favre-Leuba: cal. 253; Tianjin: Dong Feng cal. ST5; Elgin: Gr. 152 (1898), Gr. 384 (1919); Ebel: ca. 1962 ref. 9214955
    WUS: ST5 Project Watches (Black and Blue), F72.2014.DG3804 (Gray and Cream); Swatch: Sistem 51 Blue; TNT: Rattrapante cal. Rochat 7750+RAT-1

  5. #55
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    Re: The SELLITA SW200 vs ETA 2824 thread

    Quote Originally Posted by Rdenney View Post
    Depending on age, it could be either a 2824 or a SW200. Both are of similar (excellent) quality and are functionally identical. The only way to know is to look (with a loupe) at the plate under the balance wheel, where the movement maker put their mark. ETA uses a shield logo and Sellita uses a stylized S logo. The caliber numbers will be stamped there, too.

    Rick "probably an SW200 if it's new" Denney
    Thanks for the info Rick, I'm not sure of the date of manufacture but the watch (shown) was purchased last month. I think this particular model was brought to market in 2011? I've been wearing it for about a fortnight and it seems to keep perfect time.
    Name:  TAG.jpg
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  6. #56
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    Re: The SELLITA SW200 vs ETA 2824 thread

    And yes you can all tell by my lack of a tan that I'm British.

  7. #57
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    Re: The SELLITA SW200 vs ETA 2824 thread

    Quote Originally Posted by Tman10 View Post
    Thanks for the info Rick, I'm not sure of the date of manufacture but the watch (shown) was purchased last month. I think this particular model was brought to market in 2011? I've been wearing it for about a fortnight and it seems to keep perfect time.
    Name:  TAG.jpg
Views: 1695
Size:  176.3 KB
    Only way to know is to look at the movement.

    Rick "could have gone either way in 2011" Denney
    Zenith: Captain Chronograph 03.2110.400*; Cartier: Santos 100 XL Concord: Mariner, C1 Big-Date, C1 v.2 Chronograph; Ebel: Chronosport 1134901, Tekton 9137L83*, Type E 9137C41* (*=COSC)
    Ebel: 1911 BTR 9137L73* and 9139L71*, 1911 1120L41*, 1911 Senior 9080241, Brasilias 9120M41 (2), Aquatica 500 9120K61, Classic Hexagon GMT 9301F61, Classic 100 LE 9120R41; Baume & Mercier: Capeland World-Timer
    Heuer: Carrera 1964 Re-Edition CS3110; Maurice Lacroix: Masterpiece MP6439; "Seagull": 1963 Reissue cal. ST19; Seiko: Black Monster SRP307; Poljot: Sturmanskie cal. 3133; Tissot: T-Touch Lew and Huey: Acciona
    Vintage: JLC: ref. 2953, ca. 1946; Longines: Flagship cal 285; Zodiac: SST cal. 86, Aerospace GMT cal. 72; Favre-Leuba: cal. 253; Tianjin: Dong Feng cal. ST5; Elgin: Gr. 152 (1898), Gr. 384 (1919); Ebel: ca. 1962 ref. 9214955
    WUS: ST5 Project Watches (Black and Blue), F72.2014.DG3804 (Gray and Cream); Swatch: Sistem 51 Blue; TNT: Rattrapante cal. Rochat 7750+RAT-1

  8. #58
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    Re: The SELLITA SW200 vs ETA 2824 thread

    But if, as you say, they are identical movements so its probably a mute point. Do you know if the ETA 2824 an actual 'Swiss' designed - built movement?

  9. #59
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    Re: The SELLITA SW200 vs ETA 2824 thread

    Quote Originally Posted by Tman10 View Post
    But if, as you say, they are identical movements so its probably a mute point. Do you know if the ETA 2824 an actual 'Swiss' designed - built movement?
    I'm no expert but, the ETA rotor would read 25 jewels. while the Sellita would read 26 jewels.
    Sounds like the morals and ethics of a cartel in-the-making

  10. #60
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    Re: The SELLITA SW200 vs ETA 2824 thread

    Quote Originally Posted by bvc2005 View Post
    I'm no expert but, the ETA rotor would read 25 jewels. while the Sellita would read 26 jewels.
    Not always, I've seen Oris and Edox pieces for example that completely redecorate the rotor and do not leave the 26 jewel stamp. In this case, it may be more difficult since that Tag probably does not have a display back.
    bvc2005 likes this.

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