Arnold & Son Instrument Collection DBG 1DGAP.S10A.C120P

Case Round case in 18k rose gold, polished, fixed bezel in 18k rose gold, polished, sapphire caseback fixed by 6 screws, winding crowns at 3 and 9 o’clock Strap Black alligator strap, signed Arnold & Son, pin buckle in 18k rose gold, with Arnold & Son logo in relief Dial Open-worked dial, signed Arnold & Son, silver-toned peripheral 60-second track, local time sub-dial with hour and minute hands and Roman numerals at 10 o’clock, reference time zone sub-dial with hour and minute hands and Arabic numerals at 2 o’clock, local time (non-skeleton hour hand) and reference time zone (skeleton hour hand) 24-hour day/night sub-dial at 12 o’clock, central seconds hand, two exposed balances Movement Double hand-wound mechanical movement with independent balances, escapements, gears and barrels, rhodium coated bridges with côtes de Genève, mainplate with perlage, engraved and gilt inscriptions, functions: hours and minutes for 2 time zones, seconds, double 24-hour day/night indicator Cal. A&S1309 Ref. 1DGAP.S10A.C120P Case No. 18/30 D= 44 mm