£ 575 $ 758 | € 673 A 1920's period Eberhard 'trench' wristwatch. A silver case with a threaded Hermetic waterproof case. Convex bevelled edged glass. A white enamel dial with blued steel Breguet hands and a subsidiary seconds dial. Signed to the dial 'EBERHARD' with Arabic numerals to the chapter ring. The Hermetic case was an ...