1917 early round silver vintage Rolex ‘Officers’ watch

A rare large early round silver vintage Rolex ‘Officers’ watch. The case measures 33.5 mm in diameter. The case, with hinged lugs, is signed Rolex, W&D (Wilsdorf & Davis, founders of Rolex), hallmarked London 1917 and numbered. The movement is signed Rolex, Swiss Made with 15 jewels. The champagne dial has black Arabic numerals with a red twelve, subsidiary seconds dial and blued steel hands. The dial is signed Rolex above the centre.