page_title: BALL Watch Company
section_title: RR Standard
hierarchical_section_title: BALL Watch Company / RR Standard
caption_attribution_description: English: BALL's old ad
context_page_description: BALL Watch Company SA is an American watch company based in La Chaux-de-Fonds, Switzerland. It was founded in 1891 by Webb C. Ball in Cleveland, Ohio, and is linked to American railroad history. The brand is currently owned by Hong Kong group Asia Commercial Holdings Ltd.
context_section_description: Webb C. Ball set up “RR Standard” (“RR” for Rail Road) to assure a high accuracy and perfect reading to all railroad employees. He also created the BALL Time Service, an after-sale service to which every employee of the rails had to bring his watch every two weeks to make sure the accuracy and reliability of the watch was maximal. 
  To obtain the “RR Standard” certification, the watches had to follow certain criteria:
  No lid on the dial, size 18 or 16 (44.86mm or 43.17mm)
  Plain white dial, bold black hands and Arabic numbers
  Winding stem at 12 o’clock
  Minimum of 17 jewels
  Must have a double roller
  Must be lever-set
  Adjusted to at least 5 positions
  Be adjusted to temperatures of 40 to 95 degrees Fahrenheit
  Accuracy with a gain or loss of maximum 30 seconds a week
caption: BALL's old ad
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