A Dutch antique silver pair-case calendar verge watch, the movement with ornate pierced columns and cock signed 'Lucas Dyl, Amsterdam', the champlevé dial with Roman hour and Arabic minute numerals with arcaded chapter ring, the scroll pierced centre with date aperture and repeat signature, the reverse of the inner case engraved with scrolls and flowers, the bow with lion surmount, the outer case with chased scrollwork decoration, the centre later applied with an enamel dial plate depicting a riverside scene.