Royal Oak II 8638 — 8638BA

Audemars Piguet 2062

Small automaticAutomaticA mechanical movement wound by a rotor as the watch moves on the wrist. (hours and minutes) on a Rayville ébaucheÉbaucheAn incomplete movement supplied for further work before it becomes a finished watch mechanism. The parts included in an ébauche have varied by period and supplier; the term does not by itself specify a complete, assembled movement. (ref. 662) adapted with LeCoultre, which made the gold rotorRotorAn oscillating weight that uses wrist movement to wind an automatic watch’s mainspring.. About 4,000 made 1976–1980, mostly for the ladies’ Royal Oak 8638.

Automatic · Introduced 1976 · 21,600 vph · 24 jewels · 38 h reserve · Ø 15 mm · 4.25 mm thick