A late 19th Century Swiss lever with double sided calendar in a gunmetal case. Keyless gilt bar movement with going barrel. Plain cock with polished steel regulator. Compensation balance with overcoil hairspring, club foot lever escapement. White enamel dial with subsidiary seconds and Roman numerals, blue steel hands. The phase of the moon is indicated through an aperture in the centre of the dial on a blue steel and gold disc. Further calendar indications are on the other side of the watch. The days of the week and date shown by a single blue steel hand and the month in a rectangular aperture. The number of the days in each month are also given and the outer silvered ring indicating the day can be rotated by a thumb wheel to align the correct day with the date. The date is changed automatically by a pawl on the movement. Plain double sided gunmetal case with gilt bezels, hinge, winding button and bow, the calendar side under two glasses.