Milgauss 116400

The Rolex Milgauss 116400 is notable for its scientific pedigree, originally engineered in the 1950s for professionals working in environments with strong magnetic fields. The 116400 reintroduced the Milgauss to the Rolex lineup in 2007, immediately catching attention with its distinctive orange lightning bolt seconds hand and green-tinted sapphire crystal—a feature unique to this reference and a key collector draw.

This model houses the Caliber 3131, a movement shielded by a soft iron Faraday cage for magnetic resistance up to 1,000 gauss, making it a practical choice for those around electronics or lab equipment. The 40mm case wears comfortably and, paired with 100m water resistance, suits daily wear. The 116400GV variant features the green crystal, while the standard 116400 has a clear crystal—values differ, with the GV commanding a premium due to its exclusivity and visual appeal.

When shopping, expect price variations based on dial color (black or white), condition, and whether the watch comes with original box and papers. The green crystal version is more sought after, particularly early production pieces with unique dial text placements. The Milgauss 116400’s niche appeal means it tends to be less “flipped” than other steel Rolexes, so well-kept, full-set examples are worth seeking out for long-term enjoyment and value retention.