Originally designed in 1956 for scientists working near electromagnetic equipment, the Milgauss 116400GV revived this engineering icon with a bold green sapphire crystal that became an instant collector favorite. The black dial paired with the orange lightning bolt seconds hand creates one of the most visually distinctive profiles in the entire Rolex catalog, making this 40mm watch equally at home in a laboratory and at a weekend gathering.
Key Specifications
| Specification | Detail |
|---|---|
| Reference | 116400GV |
| Case Size | 40 mm |
| Case Material | Oystersteel (904L) |
| Bezel | Smooth, polished steel |
| Dial Color | Black |
| Crystal | Green sapphire (GV = Glace Verte) |
| Movement | Swiss or Japanese automatic |
| Water Resistance | 30 m |
| Bracelet | Oyster with Easylink extension |
| Functions | Hours, minutes, seconds, antimagnetic shield |
The 116400GV Up Close: Case, Dial and Bracelet
The 40mm Oyster case in 904L Oystersteel houses an internal shield of ferromagnetic alloys that protects the movement from magnetic fields up to 1,000 gauss — the feature that gives the Milgauss its name (mille = thousand). The black dial carries luminous stick markers and the signature orange lightning bolt seconds hand, visible through the green-tinted sapphire crystal designated “GV” for Glace Verte. A smooth polished bezel keeps the profile clean and understated. The three-link Oyster bracelet includes the Easylink 5mm comfort extension system and a folding Oysterclasp. Discover more anti-magnetic watches in our Milgauss collection.
Movement Options: Swiss vs Japanese
Two caliber tiers deliver the antimagnetic performance of this Milgauss.
- Swiss Automatic — High-beat 28,800 vph with approximately 48-hour power reserve. Paramagnetic blue Parachrom hairspring equivalent, hacking seconds and instantaneous date functionality omitted to match the genuine Milgauss no-date configuration.
- Japanese Automatic (Miyota) — Dependable 21,600 vph with 42-hour reserve and widely accessible service networks. Smooth sweep seconds and proven daily-wear reliability at a practical price.
Both movements sit behind the antimagnetic shield and deliver time-only functionality consistent with the original Milgauss design philosophy.
Shipping, Warranty and Returns
Every order ships with discreet packaging and full tracking. Delivery times vary by destination — see our shipping policy for detailed timeframes and methods. This watch is covered by our standard movement warranty. If your purchase does not meet expectations, review our return and exchange policy for available options.






















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