This replica Milgauss 116400GV 40mm carries the green sapphire crystal and automatic movement that made the Milgauss a favorite among collectors who value technical function over decorative complications. The 116400GV reference was the flagship of the Milgauss family until Rolex discontinued the entire line in 2023. At 40mm in Oystersteel, it occupies a size and material class shared with the Explorer and Air-King, but the smooth bezel, lightning bolt seconds hand, and green crystal set it apart from everything else in the range.

Technical Overview

• Case diameter: 40mm
• Case material: Oystersteel
• Crystal: green sapphire (Glace Verte)
• Seconds hand: orange lightning bolt
• Bezel: smooth polished steel
• Bracelet: Oyster three-link
• Movement: automatic, time-only
• Magnetic shielding: rated to 1,000 gauss

The Milgauss is one of the few Rolex sport watches with no date function. This keeps the dial clean and eliminates the Cyclops lens from the crystal, preserving the flat profile that defines the model.

Inside the Movement

The paramagnetic hairspring and internal ferromagnetic shield give the Milgauss its 1,000-gauss resistance rating. That level of magnetic protection was developed for CERN researchers in the 1950s and remains relevant for anyone who works near strong magnets, speakers, or medical imaging equipment. The time-only caliber requires no date quickset mechanism, which reduces the number of moving parts and simplifies servicing. For a version without the green crystal treatment, compare against the 116400 with clear sapphire from the same Milgauss collection.

What Sets It Apart

The green sapphire crystal is the single detail that separates the 116400GV from the standard 116400. It is not a coating or a film. The green color is part of the crystal itself, which means it will never wear away or peel. At shallow angles the green tint becomes highly visible, but viewed straight on the dial color dominates. That shifting effect makes the GV references more dynamic on the wrist than photographs suggest. The smooth bezel avoids any sports-instrument aesthetic, and the absence of a date window keeps the symmetry intact. In a catalog full of dive timers and GMT bezels, the 40mm Milgauss offers something quieter and more cerebral. This replica Milgauss 116400GV 40mm puts that scientific heritage on the wrist without a single unnecessary complication.