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Visual Diagram of a Mechanical Watch Movement

  1. Train bridge

  2. Third wheel

  3. Upper third wheel pivot / hole jewel

  4. Set lever screw (detent screw)

  5. Transmission wheel (Crown wheel)

  6. Ratchet wheel (Winding wheel)

  7. Barrel bridge

  8. Clutch wheel

  9. Winding pinion

  10. Set lever

  11. Stemhttp://cdn4.bigcommerce.com/s-iic0hc/products/44799/images/70055/2650S_side2__53307.1459278034.500.500.gif?c=2

  12. Crown

  13. Yoke spring

  14. Setting lever spring ( set bridge )

  15. Yoke

  16. Upper forth wheel pivot / hole jewel

  17. Set wheel

  18. Lower barrel arbor pivot / hole

  19. Minute wheel

  20. Mainspring barrel

  21. Center shaft and cannon pinion

  22. Lower forth wheel pivot / hole jewel

  23. Lower escape wheel pivot / cap jewel

  24. Escapement inspection holes

  25. Lower pallet arbor pivot / hole jewel

  26. Lower balance pivot/ cap jewel

  27. Click

  28. Click spring

  29. Upper center wheel pivot / hole jewel

  30. Center wheel

  31. Balance cock

  32. Regulator

  33. Upper balance pivot / cap jewel

  34. Escapement inspection notch

  35. Hairspring stud

  36. Balance wheel

  37. Pallet bridge

  38. Hairspring

  39. Upper pallet arbor pivot / hole jewel

  40. Pallets

  41. Escape wheel

  42. Upper escape wheel pivot / cap jewel

  43. Forth wheel

  44. Hour wheel

 

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