Ulysse Nardin Astrolabium Galileo Galilei 991-77

Brand Ulysse Nardin, Le Locle Model “Astrolabium Galileo Galilei”; numbered edition, No. 280 Year circa 2000 Reference 991-77 Movement No. 91.7.280 Calibre UN 97, self-winding, 33 jewels Case No. 280 Material/s yellow gold (18-carat) Bracelet navy-blue leather UN strap Buckle yellow gold (18-carat) UN deployant clasp Dimensions Ø 40 mm. 44.6 x 39.9 mm. Thickness 13 mm. Weight 102.7 gr. (approx.) Signature dial, case and movement Accessories original fitted box, Certificate of origin (blank), booklets Ulysse Nardin Ref. 991-77, large, self-winding, astronomical complications; “Astrolabium Galileo Galilei” reproducing the functions of an astrolabe, numbered edition; yellow gold (18-carat); “NOS” (new old stock) Yellow gold (18-carat), self-winding, round-shaped, large astronomical gentleman’s wristwatch, showing the following indications: • Functions of the astrolabe, i.e. a perpetual calendar • Equinoctial time (overlapping ring) • Local time • Months of the year (external gold ring) • Days of the week (aperture for two consecutive days at 6 o’clock) • Signs (12) of the Zodiac (internal gold ring) • Elevation and azimuth of the Sun and the Moon on the planisphere • Diurnal and nocturnal hours • Phases of the moon • Aspect of the Sun and the Moon in relation to each other Case: three-piece, polished, water-resistant with sapphire-crystal case-back screwed by four screws, rounded bezel engraved with radiating Roman (I-XII) and Arabic (1-24) numerals, fluted overhanging lug, domed sapphire-crystal; polished “UN” winding-crown. Dial: sky-blue and silver colours; yellow gold skeleton luminescent “Bâton” hands. Movement: UN 97, self-winding, 33 jewels, white gold skeletonised rotor.