MODEL: 116400 GV S/NO: "AN" SERIES Rolex Box & Cert Dated Current Month. Chronometer in stainless steel case 40mm fitted with original Rolex Blue dial with index bar markers. Solid stainless steel Rolex oyster bracelet featuring oyster clasp, automatic movement, sapphire crystal. 100% mint condition. Rolex is presenting a new version of the Oyster Perpetual Milgauss with unique and symbolic aesthetics. Its green sapphire crystal marked a first in watchmaking when it was introduced on the Milgauss in 2007. Now, this crystal is combined with an electric blue dial, an allusion to the emblematic lightning-bolt-shaped second and the watch’s technical purpose as a paramagnetic timepiece designed for engineers and scientists in the 1950s. Seen through the green sapphire crystal, the Z blue dial takes on a powerfully attractive magnetic hue.