Scientific Heritage Originally developed for engineers and researchers, this model is built to withstand strong magnetic fields. Its clean dial and distinctive seconds hand reflect a legacy of innovation and a commitment to precision in the most demanding environments. Technical Confidence This 2007 edition features a dial housed in a 40mm case, powered by the calibre 3131 automatic movement with a 48-hour power reserve. It is fitted with an Oyster bracelet featuring the Easylink extension and Oysterclasp, delivering a secure and comfortable fit for everyday wear in technical settings.