Rolex Oyster Perpetual Milgauss 904L Steel (reference 116400)

Rolex Oyster Perpetual Milgauss is a new-generation watch designed to resist intense magnetic fields and is the proud heir of the original Milgauss born in the 1950s in the spirit of science.

The Oyster Perpetual Milgauss derives its name from the French word for «1000» and the term «gauss», the magnetic field unit. As the French name indicates, the Milgauss watch is resistant to a magnetic flux density of 1,000 gauss.

Introduced in 2007, the new generation Milgauss watch has the reference number 116400. It features a 40mm diameter case in in 904L steel and houses the COSC-certified self-winding Rolex Calibre 3131.

Rolex Oyster Perpetual Milgauss 904L Steel (reference 116400)

Working together, the movement and the magnetic shield allow the watch to achieve exceptional performance when subjected to intense magnetic fields. The movement benefits from various innovations that reinforce its resistance to magnetic interference.

This self-winding calibre is fitted with a PARACHROM® hairspring developed and manufactured by Rolex. The escapement is equipped with an escape wheel made from a new paramagnetic material.

The magnetic shield protects the movement. Manufactured in ferromagnetic alloys selected by Rolex, it consists of two components screwed to the inside of the famous Oyster case that ensures the waterproofness of the watch.

Self-winding, equipped with a Perpetual rotor and certified by the Swiss Official Chronometer Testing Institute (COSC), the Oyster Perpetual Milgauss is guaranteed waterproof to a depth of 100 metres (330 feet).

Milgauss comes with a luminescent orange seconds hand in the shape of a lightning bolt.  The Rolex Milgauss reference 116400-001 features a black dial and reference 116400-002 has a white dial.

Rolex Milgauss 40th Anniversary version, Reference 116400 GV 001
Rolex Milgauss 40th Anniversary version, Reference 116400 GV 001

To celebrate the 40th anniversary of the collection, Rolex also launched a Milgauss anniversary version (reference 116400 GV 001) featuring an intense black dial and a green sapphire crystal.

The watch is available in 904L steel on an Oyster bracelet with an Oysterclasp and an Easylink comfort extension link.

Technical details

Model: Rolex Oyster Perpetual Milgauss 904L Steel (reference 116400)

116400-001: Black Dial
116400-002: White Dial
116400GV-001: Anniversary Edition (black dial and colored green sapphire crystal)

  • Calibre: 3131
  • Self-winding: Perpetual rotor
  • Power reserve: 48 hours
  • Oscillator Frequency: 4 Hz (28,800 beats/hour), Parachrom hairspring with a Breguet overcoil
  • Chronometer: COSC certification
  • Diameter: 40 mm
  • Materials: 904L steel
  • Waterproofness: 100 m (330 ft)
  • Winding crown: Twinlock
  • Crystal: Sapphire (coloured green for the anniversary version)
  • Bracelet: Oyster with Oysterclasp and Easylink comfort extension link

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