Unit Definition (douzieme [watchmaking]) The douzieme is a traditional unit of distance used in watchmaking. The word is French for "twelfth," and a douzième is equal to 1/12 Swiss ligne. This is about 188 micrometers (microns) or 7.4 mils.
Unit Definition (fathom) a linear unit of measurement (equal to 6 feet) for water depth.
Length/Distance 
