The Rolex Explorer II Ref. 226570 in 42mm stainless steel with black dial represents the ultimate tool watch for modern adventurers, featuring a robust Oystersteel case with satin and polished finishes that houses a striking black dial with bold Chromalight luminescent hands and hour markers for exceptional visibility in any environment, including the signature orange 24-hour hand that provides clear distinction for the GMT function. Powered by the advanced Caliber 3285, a COSC-certified Superlative Chronometer movement with 70-hour power reserve, Chronergy escapement, and Paramagnetic blue Parachrom hairspring, this watch delivers unparalleled precision and reliability for globetrotters and explorers. The fixed 24-hour bezel with engraved numerals allows for easy tracking of a second time zone, while the Oyster bracelet with Oysterlock clasp and Easylink 5mm extension system ensures a secure and comfortable fit during extended wear. Designed for durability, this Explorer II offers 100-meter water resistance, a scratch-resistant sapphire crystal, and a screw-down crown for enhanced protection against the elements. The larger 42mm case size provides improved presence on the wrist while maintaining the collection’s signature balanced proportions, making it equally suitable for professional expeditions or everyday wear. Presented in Rolex’s signature green packaging, this watch carries the legacy of the Explorer lineage, originally created for speleologists and polar explorers, now refined with modern technology and materials for contemporary adventurers who demand both functionality and timeless design. Key specifications: 42mm Oystersteel case; black dial with Chromalight display; Caliber 3285 automatic movement; 70-hour power reserve; Oyster bracelet; 100m water resistance; fixed 24-hour bezel; sapphire crystal.