If there were any doubts as to Rolex’ superior skills in chronology, the re-mastered Datejust 31 should cast them immediately aside. Subtle tweaks to the case sides and lugs as well as the cutting-edge calibre 2236 solidify the watch’s sought-after status for collectors and casual wearers alike.
Replete with Superlative Chronometer certification (verifiable by the green seal), guaranteeing remarkable performance on the wrist in terms of precision, power reserve (55 hours), waterproofness and self-winding, the precision exceeds twice what is required of an official chronometer. The calibre 2236, in its Datejust 31 premiere, is a self-winding mechanical movement pioneered by Rolex and detailed with a Syloxi hairspring. This renders the timepiece insensitive to magnetic fields with exceptional stability against variations in temperature and a high degree of shock absorbency.