Like many of its iconic watch families, Rolex's 'Milgauss' was created in 1956 with a specific market in mind: scientists, power station workers and anyone else exposed to high magnetic fields. It was designed to be able to resist fields up to 1, 000 gauss (hence the name -mille" is Latin for thousand). The watch built a solid reputation with only two models until 1988, and was happily revived two decades later in a modern re-edition that remains faithful to the original purpose and aesthetics -including the beloved lightning bolt hand. This gorgeous 'GV' version (Glace Verte) has a green-tinted dial crystal, and uses a Parachrom-Blu hairspring for even better magnetic and shock resistance. Pre-owned watches have a 24-month warranty from Watchfinder & Co. in conjunction with any remaining manufacturer's warranty. All pre-owned watches are also meticulously inspected by Watchfinder & Co. in-house experts and come with a letter of authenticity. For more information, contact one of our experts by emailing email@example.com "