Bij Rolex heeft het perpetual in de naam niets te maken met een datum.
Zie onderstaand artikel waar de naam Oyster Perpetual vandaan komt :
Since 1926, Rolex has been crafting and creating beautiful and stunning pieces of art, represented in the form of a wrist watch. Their first watch, the ‘Oyster’, was designed to feature a hermitically sealed case which provided protection for the movement and was the first waterproof watch ever created. By 1931, Rolex had created the ‘Perpetual’ movement, the worlds first self-winding mechanism with a Perpetual rotor. These two details in Rolex’s long history, bring me to the watch I will be reviewing within this article; the Rolex Oyster Perpetual, specifically in its 39mm variant