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Across
  1. 4. The holy trinity manufacture behind the calibre 240, a micro-rotor automatic movement created in 1977 and is still used in their catalogue today
  2. 5. One of their icons utilizes the lemania based calibre 321.
  3. 6. This corporation is behind the revolutionary Spring Drive technology.
  4. 8. The manufacture behind the famous calibre 89, designed by Albert Pellaton in 1946.
  5. 9. The manufacture behind the thinnest mechanical watch ever made, and the calibre BVL 180 inside of it.
  6. 10. The manufacture behind the Sistem51, a 51-component calibre that is the world's first mechanical movement with entirely automated assembly.
Down
  1. 1. The manufacture behind the first hi-beat calibre in a wristwatch - the Ultra-Chron.
  2. 2. The creator of the legendary El Primero chronograph movement, which was utilized by Rolex in their Daytona watches as well from 1988-2000.
  3. 3. Their calibre 920 notably found itself in the first Royal Oak and Nautilus watches
  4. 7. Now owned by the Swatch Group, this movement manufacture is behind "workhouse" calibres such as the 2824 and 2892