Rolex Explorer Ii 16570 Caliber 3186

Oh man, the Rolex Explorer II 16570 with the Caliber 3186—now that’s a watch with some real depth. Introduced in the late 2000s, it marked a subtle yet notable evolution in the Explorer line, featuring that upgraded movement with smoother GMT hand behavior and better accuracy overall. It wasn’t loud about it, but collectors definitely noticed. At Tropical Watch, those quiet upgrades? Yeah, we love that kind of thing.