Model Number: 224270 Case: Stainless Steel Bezel: Smooth Bezel Crystal: Sapphire Crystal Case Size: 40mm Dial: Black Movement: Automatic Cal. 3230, Approx. 70-hour power reserve Features: Hour, minute, and second hands; precise time setting via second-hand stop function Water Resistance: 100m Bracelet: Oyster bracelet, stainless steel Clasp: Oysterlock with safety catch, EasyLink (approx. 5mm extension link) Accessories: Dedicated case, warranty card, instruction manual, tag Year: August 2024, random serial number Condition: Unused *Please note that there are minor storage marks, so this item is sold as "unused." In 1953, explorers Sir Edmund Hillary and Tenzing Norgay became the first humans to successfully summit Mount Everest wearing Rolex Oyster watches. That same year, Rolex officially launched the "Explorer" to commemorate this historic achievement.Since then, the "Explorer" has been involved in numerous historic adventures. The feedback gained from these experiences has not resulted in functionality achieved through mere addition, but rather has been distilled into an ultimate simple design—one that has consistently lacked even a calendar since the first generation—resulting in a model that achieves ultimate precision and legibility, captivating people across generations. This is the Rolex Explorer 40 Ref. 224270. The new model, introduced in 2023, marks the first time in the model’s history that the case diameter has been increased from 39 mm to 40 mm compared to the previous model (Ref. 214270).Like the Explorer 36, its official name has been changed to Explorer 40. The dial features Chromalight (luminescence) that emits a blue glow for an extended period, not only on the hour markers and hands but also on the distinctive Arabic numerals at 3, 6, and 9. Inside, it is equipped with the latest mechanical self-winding movement, Cal. 3230, developed and manufactured exclusively by Rolex.With a long power reserve of approximately 70 hours, its practicality has been significantly enhanced. The ultimate functional beauty, refined over more than half a century, has garnered overwhelming support from a wide range of age groups, establishing itself as an ever-popular model. This is the new generation of the Explorer, designed to meet diverse needs.