Everest has taken the time to develop the perfect replacement spring bar for the most recently released Rolex Explorer I 40mm (reference: 224270). These spring bars are 1.5 mm thick and are designed to fit inside the 21 mm wide lug width of the Rolex Explorer 40mm. The Explorer that these were made for has a case width of 40mm and was released in 2022. These spring bars will work both on the Everest rubber strap designed for this model or the bracelet that Rolex created for the Explorer I.