The Rolex Milgauss ref: 116400-0002 features a stainless steel case with a diameter of 40mm. It is powered by the automatic winding Rolex caliber 3131 movement, ensuring precise timekeeping. This model, produced in 2007, includes a white dial and is certified as a chronometer. The watch is designed to withstand magnetic fields, making it a practical choice for professionals in scientific fields.