Housed in a 36 mm round case crafted from Yellow Rolesor — Rolex's combination of Oystersteel and yellow gold — this Datejust 36 carries a domed yellow gold bezel above a champagne fluted motif dial. Scratch-resistant sapphire crystal with a Cyclops lens magnifies the instantaneous date display, while a solid case back and screw-down Twinlock crown maintain water resistance to 100 metres.
Power comes from the Calibre 3235, a perpetual mechanical self-winding movement manufactured by Rolex. It delivers a precision of -2/+2 seconds per day after casing, holds approximately 70 hours of power reserve, and winds bidirectionally via a Perpetual rotor. The oscillator features a paramagnetic blue Parachrom hairspring paired with high-performance Paraflex shock absorbers, and the watch carries Superlative Chronometer certification — meeting both COSC standards and Rolex's own post-casing criteria.
The Yellow Rolesor Jubilee bracelet, built with five-piece links, fastens via a folding Oysterclasp fitted with an Easylink 5 mm comfort extension link for easy on-wrist adjustment. Reference 126203-0039 brings together the enduring proportions of the 36 mm Datejust with the warmth of yellow gold detailing throughout.
