Rolex Milgauss Glace Verte Z-Blue Dial

The Rolex Milgauss is one of the brand's most unique watches, designed specifically for scientists and engineers who work in environments with high electromagnetic fields. Its distinctive design and robust features have made it a favorite among watch collectors and enthusiasts.

In this blog post, we will take a deep dive into the history of the Rolex Milgauss, from its inception in the 1950s to its re-introduction in 2015 with the green crystal and z-blue dial.

The Early Years

The Rolex Milgauss was first introduced in 1956, during a time when scientists and engineers were becoming increasingly concerned with the effects of electromagnetic fields on mechanical watches. These fields could cause significant deviations in the timing of watches, making them less accurate and reliable.

Rolex saw an opportunity to create a watch that would be resistant to these magnetic fields, and thus the Milgauss was born. The name "Milgauss" comes from the French word for one-thousandth of a Gauss, which is a unit of measurement for magnetic fields.

The first Rolex Milgauss featured a soft iron inner case that was designed to protect the watch's movement from magnetic fields. The watch was also equipped with a Faraday cage, which is a device that dissipates magnetic fields and ensures that the movement is not affected.

The watch was not particularly popular at first, as its unique design and high price point made it a niche product. However, it gained a following among scientists and engineers who appreciated its practicality and durability.

The Milgauss continued to evolve over the years, with various updates and changes to its design. In the 1960s, Rolex introduced a second version of the Milgauss, which featured a thicker case and a more prominent bezel. This version of the watch was also equipped with a new movement, the calibre 1570.

The Milgauss was discontinued in the 1980s, as Rolex shifted its focus to other models. However, it remained a beloved watch among collectors, who sought out vintage examples of the watch.

The Re-Introduction

In 2007, Rolex re-introduced the Milgauss, much to the excitement of watch enthusiasts. The new version of the watch was updated with modern technology and materials, while still retaining the distinctive design that made it so popular in the first place.

The new Milgauss featured a number of updates, including a new movement, the calibre 3131, which was designed to be even more resistant to magnetic fields than its predecessor. The watch also featured a new green sapphire crystal, which gave it a unique and eye-catching appearance.

In 2014, Rolex updated the Milgauss once again, this time with a new dial color: z-blue. The new dial featured a striking electric blue color, which was a departure from the traditional black or white dials that had been used in previous versions of the watch.

The z-blue dial quickly became a fan favorite, with many collectors seeking out this version of the watch. The dial was designed to be both legible and eye-catching, with bold white hour markers and hands that stood out against the blue background.


The Rolex Milgauss is a unique and distinctive watch that has a rich history and a loyal following among collectors. From its inception in the 1950s to its re-introduction in 2007, the Milgauss has been designed to withstand the rigors of scientific and engineering environments, making it a practical and reliable watch for those who work in these fields.

With its green sapphire crystal and z-blue dial, the modern Milgauss is a stunning watch that combines modern technology with a classic design. Whether you are a collector or simply a fan of watches, the Rolex Milgauss is a watch that is 

worth considering for its unique history, design, and practicality in high-electromagnetic environments.