Vintage Heuer Carrera crown-tube size?? 60s ref. 3648s

  1. Rasmus_denmark

    Rasmus_denmark Feb 21, 2018

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    Hi guys,

    Could any of you tell me what size the original crown-tube should be?? At the moment, my Heuer 3648s has a 3mm crown tube, which is making it quite hard for me to find a replacement crown.

    I wonder what size it was ment to have factory .. 3mm or 2.5?

    - Rasmus
     
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