ROLEX REF. 1018 GLOBAL INSURANCE LOGO STEEL Rolex, "Oyster Perpetual, Superlative Chronometer, Officially Certified," case No. 1270063, Ref. 1018. Made in 1965 for the Global Insurance Co. for promotional purposes. Very fine and extremely rare, center seconds, selfwinding, water- resistant, stainless steel wristwatch. Three-body, polished and brushed, screw-down case back and crown, polished bezel. Textured silver with the letter G encircling a world map. Luminous steel baton hands. Cal. 1560, rhodium-plated, 25 jewels, straight-line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock absorber, self-compensating Breguet balance spring, Microstella regulating screws.