ROLEX MILGAUSS BLUE DIAL Rolex, Oyster Perpetual, Milgauss, Superlative Chronometer Officially Certified, Ref. 116400GV, movement no. 2Q05H677, case no. 7212N7U6, sold in 2014 A very fine and full-set, automatic, anti-magnetic, stainless steel, tonneau-shaped certified chronometer wristwatch with brushed blue dial, luminous hands, applied white gold luminous Baton indexes, orange lightning-bolt sweep center second and stainless Oyster bracelet with deployant clasp. Fitted with a Cal. 3131, mechanical, rhodium-plated, certified chronometer, 31 jewels, hack mechanism, self-winding, protected by a screwed anti-magnetic cap, screwed case back and crown, green sapphire crystal. Dial, case and movement signed. Diam. 40 mm. Thickness 13 mm. Wrist circumference approximately 170 mm. Accompanied by a fitted presentation box with outer packaging, guarantee manual, red seal, guarantee card dated October 2014. The name 'Milgauss', combines 'Mil', meaning Mille (a thousand), and 'Gauss', for the unit of measure of magnetism. Most good watches resist magnetic fields of 60 to 70 Gauss, but the 'Milgauss' keeps its astounding precision in magnetic fields up to 1000 Gauss, thanks to its special construction: a soft iron cage protecting the movement and dial, combined with another antimagnetic soft iron screwed dust cap.