Vintage Buren Rival Man's Watch 17 Jewels

This watch is not working. It's dial is marked, 'Buren rival jewels 17 rubies Incabloc Swiss made'. It has a brass case and its original stainless steel back. I would imagine it dates from the 1970's. It has a width of 3.7cm including the crown. The Perspex front is cracked and the crown does not wind the hands well.

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