1916 very rare early round silver vintage Rolex watch

A very rare early round silver vintage Rolex watch. The case measures 34 mm in diameter. The case is signed W&D (Wilsdorf & Davis), Rolex and hallmarked London 1916. The movement is signed Rolex with 15 jewels. The black enamel dial has white Arabic numerals with a white subsidiary seconds dial. The dial is signed Rolex above the centre.

This is an early ‘Officer’s’ or ‘Trench’ watch, in wonderful condition.