Two silver openfaced keyless lever chronograph pocket watches, circa 1910, each with a white enamel dial, subsidiary seconds and minute recording dials, chronograph buttons in the crown, engine turned cases, each 50mm. diam. (2)

細節
Two silver openfaced keyless lever chronograph pocket watches, circa 1910, each with a white enamel dial, subsidiary seconds and minute recording dials, chronograph buttons in the crown, engine turned cases, each 50mm. diam. (2)