Roger Dubuis an oversized 18ct white gold automatic wristwatch no 13/28 mvt 434 Bulletin D'Observatoire circa 2010, Cal.57 automatic movement, 25 jewels, adjusted to five positions, stamped with the Geneva seal of quality, brushed silvered dial with polished Arabic numerals and black inner minute track, blued steel spade hands, brushed and polished curved rectangular case with exhibition back secured by eight screws, case, dial and movement signed, with 18ct white gold Roger Dubuis buckle, case 34 x 47 mm.