The Rolex Submariner 16803 is a men's automatic wristwatch. It features an iconic design from the diving legend series. The case combines stainless steel and 18K yellow gold. Its diameter measures 40 mm. A black dial with luminous material on its surface provides clear time indication against water-resistant sapphire crystal glass. The bezel is crafted in black ceramic ensuring excellent scratch resistance performance for measuring elapsed time underwater accurately reliably conveniently effectively clearly confidently dependably effortlessly proficiently precisely.