1915 early 9ct rose gold vintage Rolex watch

An early 9ct rose gold vintage Rolex watch. The case measures 28mm in diameter. The case is signed Rolex, W&D (Wilsdorf & Davis) and is hallmarked London 1915. The Swiss made movement is signed Rolex with 15 jewels. The dial has black Arabic numerals, with a red 12, and a subsidiary seconds dial. The dial is signed Rolex above the centre.