Ca. Ø53mm, ca.112g, 18K gold, hunting case watch, case number B5469, dome marked 'Chronometre No.15987, Bulletin de 1ere Classe de L' Observatoire Astronomique Ulysse de Neuchâtel', top class Ankerchronometer movement, Geneva stripes, exceptionally large chronometer balance, plate numbered 15987, signed bridge, minute wheel gold chaton, fine adjusting device, signed enamel dial in perfect condition, blued steel hands, in very good condition, in working order. The watches with the extract from the chronometer database. Ulysse Nardin 1st class deck chronometers with gold cases are very rare and sought-after collector's items.