The Royal Oak is a timepiece that set the benchmark on many fronts. Not only was it the very first luxury sports watch when launched in 1972, it was also the very first luxury sports watch featuring a complication.
In 1982, exactly 10 years after its launch, the Royal Oak was presented with a perpetual calendar, not only a rare complication at the time as very few brands were still producing them but the audacity of housing this delicate complication in a steel sports watch was mind boggling.
Interestingly, the birth of the Royal Oak Perpetual Calendar is the result of research undertaken by three brilliant watchmakers wishing to create an extra slim perpetual calendar mechanism built upon caliber 2120, which cased other iconic models such as Patek Philippe's Nautilus, Vacheron Constantin's 222 and the Royal Oak itself.

Ref. 25654BA, 25654SA, 25654PR, 25654ST, 25654BR000944BR03, 25654STOO0944ST02,