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  1. #1

    Tweaks to ETA Movement?

    Can anyone comment on how Bremont works over ETA movements for the Supermarine 500 i own? Im curious what tweaks are made to that movement, apart from being COSC of course
    Dino Zei
    And other various things....

  2. #2
    Good question; I'd like to know myself. Well, they're high quality ETA movement since they're COSC certified. I know they use an engraved rotor as well. Beyond that, I don't what other modifications, if any, Bremont makes to their movements.

  3. #3
    Senior Member Antoniopd's Avatar
    Join Date
    Feb 2014
    There's an interesting discussion here:
    - Tony

  4. #4
    ETA chronometer grade movements are usually fitted with an upgraded balance wheel and regulating assembly, Anachron balance spring rather than Nivarox, a higher grade pallet fork and higher grade pallet fork stones, and movement decoration. Not sure if Sellita perform the same upgrades but I'd imagine they are similar.

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