Rolex Day-Date 40 Yellow Gold / Black - Baguette Ref. 228238-0004

The Rolex Day-Date 40 debuted in 2015 and marked a dimensional recalibration of the collection, positioned between the classic Day-Date 36 and the earlier Day-Date II. The case measures 40 mm in diameter and is crafted from 18 ct yellow gold, using Rolex’s monobloc Oyster architecture with a screw-down case back and winding crown. Water resistance is rated to 100 metres. Reference 228238-0004 was added to the collection in 2016. It features a fluted bezel in yellow gold framing a scratch-resistant sapphire crystal with a Cyclops lens above the date aperture. The dial is executed in Black and set with baguette-cut diamond hour markers, replacing the standard applied markers. The day of the week is displayed in full through an aperture at 12 o’clock, with the date shown at 3 o’clock. Powering the Day-Date 40 is the Rolex calibre 3255, a self-winding mechanical movement operating at 28,800 vibrations per hour. The movement incorporates a blue Parachrom hairspring, Paraflex shock absorbers, and a bidirectional Perpetual rotor. It delivers an approximate power reserve of 70 hours and supports instantaneous day and date displays with secure rapid setting, as well as stop-seconds for precise time adjustment. Following casing, the movement is certified as a Superlative Chronometer. The watch is fitted with the President bracelet, composed of semi-circular three-piece links in 18 ct yellow gold. It is secured by a concealed folding Crownclasp and integrates seamlessly with the case.