Rolex GMT-Master II 126710BLRO Pepsi Dial Oct 2021The observe is driven by a self-winding motion and is particularly water resistant to 100 meters. It includes an jubilee bracelet.The ref. 6542 utilized a bakelite bezel insert, blue on the best, red on The underside, which was vulnerable to cracking, and by 1956 was changed by an aluminum insert of