Breguet, Very Rare Wandering Hour Pocket Watch, Robert Cart Patent, 18k Gold, circa 1928 Case: 45.5 mm, 18k yellow gold, three body, plain polished, No. 1820 Dial: silver, black enameled minute divisions and five minute numerals, rotating center disc with engraved arrow form minute pointer, aperture for the jump hour display Movement: Breguet, No. 1820, straight line lever escapement, 19 jewels, eight adjustments, nickel bridge with Geneva stripes decoration, circular damaskeening to the pillar plate Signed: Breguet 1820 on the dial, case and movement, 59.7 grams gross weight HID03101062020 © 2020 Heritage Auctions | All Rights Reserved