Around 1949/50. Stainless steel. Automatic. Light dial, illuminated silver indizes and hands, labelled 'Rolex Oyster Perpetual Officially Certified Chronometer'. Case marked and numb. 70 90 60 and 6084 Stainless Steel. Crown marked 'Rolex Super Oyster'. Leather bracelet added. foldingclasp with buckle marked 'Acier INOX Rolex SA. Swiss'. Diameter 34 mm, weight approx. 43 g.