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CONC LUSION The manufacturing p rocesses of all engineering industries are continuously being improved: old processing methods are replaced by new and more advanced m ethods , and manual ope rations are mechani zed and automatized. Research and design work on the development of new, highly productive machining and assembly processes is being conducted by the watch industry chines are being intrbduc ed into p roduction, and automation of finishing, A n automatic line for machining wristwatch case middles is already in existence ( 1 9 5 6 ) and is in us e in the p roduction of " Pobeda" watches . The yearly on a two - shift basis . The over- all line productivity exceeds six times sectors : the firs t sector p e rforms the six turning operations , and the s e c fed into the work zone of the next machine after it has been machined on the 8 sec: 4 sec a r e spent on the actual machining, a n d 4 s e c o n transportation. Mag blanks to the s e c ond s e ctor if the firs t s ector has stopped for any reas on . A 0 . 5 to 1 o/o sample is inspected within the line. Five part samples are removed at the end of each s ector and fed to automatic inspecting instru m e nts . Chips are rem o ve d from the machines and the working surfaces by com p re s s e d air. Should a drill happen to break, the s ec to r stops automatically, The line elements are so designed that the separate units or s ections can be readjusted to form a flow line which will turn out case middles or lids A utomatic lines are a natural stage in the d e velopment of mass -produc tion methods and processing m eans . A n automatic line s harply increases the different types of m achines were interconnected by various transporting A p roblem which must be solved in the nearest future is the m anufacture of watch parts requiring a small number of ope rations , such as the hairspring 4 2 9 |