Standard mechanical watches often lose precision when exposed to magnetic fields between 50 and 100 gauss. To assist scientists working in high-field environments, Rolex developed the Milgauss in 1956, named for the French word for thousand. The reference 116400 launched in 2007, with the non-GV black dial version ending production in 2013. The Z-Blue variant joined the collection in 2014.
Shape
Round
Lug Distance
20.00 mm
Material
Stainless Steel
Glass
Sapphire
Diameter
40.00 mm
Water Resistance
100.00 m
Dial Color
Blue
