J. Sewill

Interesting pocket watch with single-push-button stopwatch function, manufactured in Switzerland for sale by J. Sewill, 30 Cornhill, London, circa 1910 watch case: 935 silver, number 30099, Swiss hallmarks, Lepine, diameter approx. 54 mm movement: Hand-wound, gold-plated lever escapement, Breguet balance spring, compensation balance, stopwatch function via column wheel, blued screws dial: White, enamel, Arabic numerals, two recessed dials for the 30-minute counter and small seconds, classic tachymeter scale with additional tachymeter scales calibrated for 400 meters and 1/4 English mile seconds counter hand bent (approx. 55)

Estimate:£861.03

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