LONGINES AND ZENITH. THREE UNUSUAL AGATE AND GOLD OR PINK GOLD OPENFACE KEYLESS LEVER WATCHES
Signed Longines and Zenith, circa 1910
Each with gilt-finished lever movement, the white enamel dial with Roman numerals, blued steel spade hands, subsidiary seconds, set into a case carved from a piece of gray and blue agate, black and white agate or russet and white agate, case, dial and movement signed
49, 54 and 50 mm. diam.