Arnold & Son DBS 44mm 18k Rose Gold Silver Dial Brown Alligator Strap 1DSAP.W01A.C120P 8UFJFV 18K rose gold case, cambered sapphire with anti-reflective coating on both sides, case back see-through sapphire. Solar and sidereal time on two separate sub-dials. Roman numerals. Silvery-white and silvery opaline dial. A&S1311 caliber, Exclusive Arnold & Son mechanical movement, hand-wound, 42 jewels, diameter 35 mm, thickness 3.9 mm, power reserve 40 h, 21’600 vibrations /h. Movement decoration: Nickel-silver movement, rhodium treated with Haute Horlogerie finishing: manually chamfered bridges and polished edges, fine circular graining and ‘Côtes de Genève’, blued screws. Functions: local hours, minutes and seconds, sidereal hours and minutes, local time 24 h indicator, sidereal time 24 h indicator. Hand-stitched brown alligator leather strap. Water resistant at 30 meters.