Audemars Piguet Royal Oak Selfwinding Watch - 15451ST.ZZ.1256ST.03 5159J001 This yellow gold Day-Date features

This yellow gold Day-Date features a yellow gold flutted bezel and a green malachite dial with diamond encrusted gold Roman numeral hour markers

42 mm 18K white gold case

5 mm white gold case

interchangeable full back and sapphire crystal back

60-minute countdown timer

Audemars Piguet Royal Oak Selfwinding Watch - 15451ST.ZZ.1256ST.03 5159J001 This yellow gold Day-Date features37 mm stainless steel case, 9. 8 mm thick, glareproofed sapphire crystal back, diamond set bezel, glareproofed sapphire crystal, blue dial with Grande Tapisserie pattern, white gold applied hour markers and Royal Oak hands with luminescent coating, Calibre 3120 selfwinding movement with dive time measurement, hours, minutes, center seconds and date, approximately 60 hours of power reserve, stainless steel bracelet, AP folding buckle. Water resistant