Both models are fitted with an Oyster bracelet, a three-piece link bracelet known for its robustness. Featuring the Rolex-designed and patented Oysterlock folding safety clasp, which prevents accidental opening, it is also equipped with the Easylink comfort extension link; developed by the brand, this allows the wearer to easily adjust the bracelet length by approximately 5 mm.
The Explorer is equipped with calibre 3230 while the Explorer II features calibre 3285. Both are self-winding mechanical movements entirely developed and manufactured by Rolex. They offer a power reserve of about 70 hours.