late 18th century, 37.00 mm case diameter, white dial, black enamel Roman numerals with outer chapter ring calibrated to 60 units, gilt spade hands, hinged swing-out key wound and set brass verge fusee movement signed Windmill London, square pillars, pierced and engraved balance cock, 45.00 mm diameter outer gilt metal repousse case.
Movement number: 11283.