AP 5900

About the Audemars Piguet AP 5900

The point of it is thickness. At 3.9 mm it is a third of a millimetre slimmer than the 3120 it replaced, which is what let the 37 mm Royal Oak 15550 keep the proportions of the 41 mm 15510 rather than growing thicker to hold a modern movement. It runs at 28,800 vph with a 60-hour reserve, 29 jewels and 188 components, at 26.2 mm across, with a date and a stop-seconds function, and it is finished for a display back.

In the library it sits under 31 Royal Oak references, the 37 mm 15550 and 15551 in steel, pink gold and white gold, many with diamond bezels, 10 CODE 11.59 38 mm references and 2 Royal Oak Offshores. The 37 mm case accounts for 33 references and the 38 mm for 10.

The 5800 is its sibling for the 34 mm Royal Oak, the 4302 the movement of the 41 mm, and the 3120 the caliber both replaced.