Rolex
Rolex Milgauss 116400GV
“Z-Blue (blue dial)”
The Rolex Milgauss (reference 116400GV) is a 40 mm Oystersteel watch. It runs on the automatic caliber 3131 with a 48-hour power reserve and is water resistant to 100 m. It was made from 2007 to 2023.
Specifications
Case
- Reference
- 116400GV
- Nickname
- Z-Blue (blue dial)
- Collection
- Milgauss
- Case size
- 40 mm
- Case material
- Oystersteel
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bracelet / strap
- Oyster, Oystersteel bracelet
Dial and bezel
- Bezel
- Smooth fixed bezel
Movement
- Movement
- Automatic
- Caliber
- 3131
- Power reserve
- 48 hours
- Frequency
- 28,800 vph
- Jewels
- 31
- Functions
- Time only
Production
- Production
- 2007–2023
Dial versions
This reference was made with these dials and finishes.
116400GV GV
116400GV-0001
Orange lightning-bolt seconds hand · “GV”
116400GV Z-Blue
116400GV-0002
Sunburst; orange lightning-bolt seconds hand · “Z-Blue”
How it compares within the Milgauss family
Side by side with other references in the same collection, from the catalog.
About the Milgauss family
The Milgauss was made for scientists and engineers who worked near strong magnetic fields. Introduced in the 1950s with refs. 6541 and 6543, it was designed to resist 1,000 gauss, which gave it its name. The ref. 1019 followed in the 1960s and stayed in production until the late 1980s.
Rolex revived the model in 2007 with ref. 116400, which has a soft-iron shield around the movement and an orange lightning-bolt seconds hand. The 116400GV adds a green-tinted sapphire crystal. The collection was discontinued in 2023, so current pieces trade on the secondary market only. Dealers distinguish the black and the white dial and, on the GV, the black and the electric blue dial.
Quick answers
- What size is the Rolex Milgauss 116400GV?
- The Rolex Milgauss 116400GV has a 40 mm case.
- What movement does the Rolex Milgauss 116400GV use?
- It uses the automatic caliber 3131, with a 48-hour power reserve.
- How water resistant is the Rolex Milgauss 116400GV?
- It is water resistant to 100 metres.
- Is the Rolex Milgauss 116400GV still in production?
- No. It was made until 2023.
- When did the Rolex Milgauss 116400GV come out?
- It was introduced in 2007 and made until 2023.
- What is the Rolex Milgauss 116400GV made of?
- The case is Oystersteel. Bracelet or strap: Oyster, Oystersteel bracelet.
- Which dials was the Rolex Milgauss 116400GV made with?
- The catalog lists 2 dials: Black, Blue.
- What is the Rolex Milgauss 116400GV nicknamed?
- Dealers and collectors call it the “Z-Blue (blue dial)”.
Catalog facts checked October 2026.