Rolex Day-Date President 18039

Reference 18039 specifies the 36mm Day-Date from the 180xx series (c. 1978-1988), configured with a case and President bracelet in 18k white gold (9) and a fluted bezel (3). This series is historically significant for introducing two key technical modernizations. It is powered by the Rolex Caliber 3055, a 27-jewel movement operating at 28,800 vph, which features a ‘single quickset’ mechanism for rapid date correction. It was also the first white gold Day-Date to be equipped with a flat, scratch-resistant sapphire crystal. The use of 18k white gold provides a monochromatic and more discreet aesthetic than yellow gold. The 18039 is a significant transitional reference, bringing modern user functionality to the classic white gold Day-Date.