I have to make a very tough decision. I must say it is the Rolex Milgauss, which is my graduation watch from my father as a gift. Besides its intrinsic meaning to me, I love the watch because of its history and craftsmanship.
The first Rolex Milgauss was introduced in 1956. The name is derived from the Latin mille, which means one thousand, and gauss, the unit of a magnetic field. This model is so named because it can withstand a magnetic flux density of 1,000 gauss. Back then, It was a true innovation for scientists / engineers who has to work in lab environments who gets constantly exposed to magnetic fields due to different substances, machinery and equipment, which could affect small watch parts in the movement and reduce the watch’s accuracy. My Rolex Milgauss 11610GV ‘glass verte’ is a 50 years anniversary version of the Milgauss featuring a green sapphire crystal.
According to the Rolex Forum, these green sapphires are made using the hydrothermal method. It is based on the transformation of melting crashed sapphire and copper together at 600 degrees under the pressure of 800 PSI in order to obtain the optimal green tint. The process takes 4 weeks. What a Legend!