The Rolex Lady-Datejust reference 279173-0020 is a 28mm luxury timepiece featuring a two-tone construction of Oystersteel and 18kt yellow gold, known as Yellow Rolesor. This model is characterized by a sunray-finished silver dial with applied yellow gold index hour markers and the iconic fluted bezel in yellow gold. The watch is presented on a three-piece link Oyster bracelet equipped with a folding Oysterclasp and the Easylink 5mm comfort extension system. Its Oyster case utilizes a screw-down winding crown with the Twinlock double waterproofness system and a scratch-resistant sapphire crystal with a Cyclops lens for date magnification, ensuring water resistance up to 100 meters.
Inside, the watch is powered by the manufacture caliber 2236, a self-winding mechanical movement that is COSC certified as a Superlative Chronometer. This movement incorporates a patented Syloxi hairspring in silicon and Paraflex shock absorbers, providing high resistance to shocks and magnetism while offering a power reserve of approximately 55 hours. The complications are focused on essential timekeeping, including center hour, minute, and seconds hands, along with an instantaneous date display and stop-seconds for precise time setting.
General reviews of the Lady-Datejust 28 emphasize its status as a quintessential feminine classic that balances elegance with robust daily durability. Experts often praise the caliber 2236 for its technical sophistication and reliability in a small form factor. The Yellow Rolesor configuration is frequently noted for its versatility, allowing the watch to transition seamlessly from formal to casual settings. While highly regarded for its timeless design and exceptional fit and finish, some reviewers note that the high-polish center links on the Oyster bracelet can be more susceptible to visible hairline scratches compared to other bracelet styles.