42MM Explorer II 226570 (2025) Pre-Owned RolexThe Rolex Explorer II 226570 is the current generation 42mm Explorer II in Oystersteel, introduced in 2021 as the successor to the long running reference 216570. Originally developed in 1971 for cave explorers, mountaineers, and polar adventurers operating in environments where distinguishing day from night could become difficult, the Explorer II is defined by its fixed 24 hour bezel and independently adjustable GMT hand. The white dial version, often