Brushed and polished 18ct yellow gold case; fixed bezel engraved with tachymetric scale in yellow gold; black dial featuring luminous yellow gold hands and stick hour markers plus three sub-dials (30-minute, 60-second, 12-hour); self-winding perpetual mechanical chronograph movement powered by Caliber 4131; screw-down case back and winding crown monobloc middle case; sapphire crystal scratch resistant display; round 40mm case size; screw-down winding crown; tachymetric function for measuring speed; power reserve indicator; water resistance to 100 meters (330 feet).
![Rolex [Model Number] - Black Dial Steel Men's Watch](https://cdn.lepodium.net/images/000/181/181744-2.jpg)
