AutoDesk has a really nice free utility called “True View” that should open any dwg or dxf. With it you can also print to any scale (including full.) It also has a measure command that will let you pull a measurement directly off the drawing.
Gear teeth numbers for the main gears are, 40, 32, and 24 all with an 8 tooth pinion.
This gives gear ratios of 5:1 4:1 and 3:1.
5x4x3=60 meaning the escape wheel rotates once a minute.
Hope this helps.
Gary
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