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Service Manual TIMEX Model 31

13 lig. 29.08 mm 1.145 in. The TIMEX Model 31 movement is a new thin self winding watch which uses the basic construction of the Model 24 . A new planetary gear winding system located on the front frame provides a compact method of obtaining the necessary gear reduction between the self winding weight and the mainspring . The reserve power of the mainspring when the watch is worn by a normally active person is sufficient to run the watch for a full day.

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