The Datejust 36 ref. 126234 refines Rolex’s most versatile classic with a 36 mm Oystersteel case, 18 ct white‑gold fluted bezel, screw‑down crown with Twinlock, and the dependable calibre 3235 powering the date beneath a Cyclops—complete with the efficient Chronergy escapement, blue Parachrom hairspring, and a roughly 70‑hour reserve; waterproof to 100 m and offered on Jubilee or Oyster bracelet, it’s the dress‑anywhere, wear‑forever Rolex in its most balanced size.