Rolex Datejust 31 Yellow Rolesor — Mother-of-Pearl Roman Dial with Domed Bezel | Ref. 178243

Yellow Rolesor — Rolex's seamless fusion of Oystersteel and 18 ct yellow gold — has long served as the archetypal expression of the Datejust's democratic luxury: accessible enough for daily wear, opulent enough for any occasion. Reference 178243 embodies this philosophy with particular clarity in its 31 mm Oyster case, where the domed bezel in 18 ct yellow gold imparts warmth and dimension, its convex profile catching light with an organic softness that contrasts deliberately with the angular geometry of diamond-set alternatives.

The mother-of-pearl dial is the watch's defining sensory element — a material drawn from the sea whose iridescent shimmer varies by the second as viewing angles shift. No two mother-of-pearl dials are identical; each possesses a unique constellation of colour, from deep silver-blue through green and rose, making every 178243 subtly singular. Roman numerals in 18 ct yellow gold march around its circumference with elegant authority, their classical form lending the dial a connection to the pre-modern horology that Rolex has always simultaneously transcended and honoured.

The calibre 2235 automatic movement — Rolex's manufacture engine for the 31 mm Datejust — provides self-winding reliability through its bi-directional Perpetual rotor system and approximately 48 hours of power reserve. The Yellow Rolesor Oyster bracelet in Oystersteel and 18 ct yellow gold echoes the case's material story, its brushed outer links and polished centre links creating the satisfying textural duality that has defined the Oyster bracelet since 1947. Secured by the Oysterclasp, this is a watch built for decades of faithful service.