Rolex Milgauss 116400GV Z-Blue Discontinued
About This Watch
The Rolex Milgauss 116400GV with Z-Blue dial was one of the most visually distinctive watches Rolex ever produced, and its recent discontinuation has sent secondary market prices soaring. The name "Milgauss" comes from "mille" (thousand) and "gauss," referring to its ability to resist magnetic fields of up to 1,000 gauss, a specification that made it invaluable to scientists and engineers working near strong electromagnetic equipment. Originally introduced in 1956 for researchers at CERN, the Milgauss was discontinued in 1988 before being relaunched in 2007. The "GV" designation stands for "Glace Verte" (green glass), referring to the unique green-tinted sapphire crystal that is exclusive to the Milgauss. Combined with the vivid Z-Blue dial and the iconic orange lightning bolt seconds hand, the visual effect is unlike anything else in watchmaking. The caliber 3131 features a shield of ferromagnetic alloys that protect the movement from magnetic interference. The antimagnetic properties are achieved without a soft iron inner case, allowing the movement to be seen through the transparent caseback — a Rolex rarity. The Milgauss Z-Blue has become an instant collectible since its discontinuation, treasured for its scientific heritage and unmatched visual character.
In-Depth Review
# The Milgauss 116400GV: A Discontinued Icon That Commands Respect
Rolex's decision to discontinue the Milgauss 116400GV in 2019 transformed what was already a cult favorite into a collector's prize. This 40mm field watch inherits decades of technical credibility—the original Milgauss launched in 1956 to protect scientists and engineers from magnetic fields. The 116400GV updated this legacy with modern refinement: a Rolex 3131 caliber offering 48-hour power reserve, a robust 904L Oystersteel case, and that unmistakable Z-Blue dial that captures light like liquid electricity. The green-tinted sapphire crystal complements the dial perfectly, creating visual coherence that elevates the watch beyond mere functionality. At 40mm and just 13.1mm thick, it occupies an ideal middle ground—substantial without being ostentatious, a tool watch with undeniable presence.
The ideal owner is someone who values engineering authenticity over flashiness. This watch appeals to professionals in technical fields, veteran collectors who appreciate Rolex's historical narrative, and anyone drawn to distinctive dial colors that photograph beautifully but resist trendy oversaturation. The 100m water resistance handles daily immersion without pretending to be a dive instrument.
In the current secondary market at fifteen thousand dollars, the 116400GV commands a premium once reserved for steel sports models. Against competing alternatives like the Omega Seamaster Aqua Terra or the Tudor Black Bay, the Rolex justifies its price through discontinued status and that singular Z-Blue personality. For collectors, it represents a moment when Rolex took artistic risks.
Specifications
Movement
| Movement Type | Automatic |
|---|---|
| Caliber | Rolex 3131 |
| Power Reserve | 48 hours |
| Frequency | 28,800 vph |
| Jewels | 31 |
Case
| Case Diameter | 40.0mm |
|---|---|
| Case Thickness | 13.1mm |
| Case Material | Oystersteel (904L Stainless Steel) |
| Crystal | Green-tinted sapphire |
| Bezel | Fixed, smooth |
| Dial Color | Z-Blue (Electric Blue) |
| Lug Width | 20mm |
| Lug-to-Lug | 49.0mm |
Features
| Water Resistance | 100m / 328ft |
|---|---|
| Bracelet/Strap | Oyster bracelet |
| Clasp | Oysterlock folding clasp with Easylink |
| Weight | 145g |