Thomas Earnshaw is remembered for his ground-breaking work and tireless work in Horology at a time where the most crucial element to naval navigation was accurate timekeeping. It was through increasingly accurate chronometers on board ships that seafarers would be able to plot out and to more accurately understand and measure degrees of Longitude, which served as an east-west co-ordinate on the Earth’s surface.
Solving the Longitude problem heralded a wave of long-distance sea travel, which changed the course of global history, trade, and commerce as we know it. Earnshaw finally earned a reward, albeit controversially for his efforts from the Board of Longitude in 1805 and this tussle really framed his legacy as one of England’s most important horologists.
As part of the successful Longitude range, Earnshaw announces the launch of the Longitude Hemisphere Automatic ES 8087. As an automatic timepiece, the watch uses the wearer's own movements to swing the rotor attached to the back of the movement which in turn automatically winds the mainspring to develop energy to power the watch and its timekeeping functions.
The case back of the Longitude Hemisphere shows off a beautifully finished rotor uniquely stamped with the “E” logo and the back lens itself is etched out in a Longitude motif.
Besides the main time display, an independent second dial reads off the time in a separate timezone at the 9 o’clock position. The subdial is an applied ring with a radial etching and applied Roman numeral markings at the 12, 3, 6 and 9 o'clock position. At the top of the dial, the sun and moon display is visible showing off a beautifully executed metallic outlined view of day and night, carefully framed by a chamfered subdial ring.
At the 6 o’clock position the expose flywheel is visible and framed elegantly with a bridge and this symphony of visibly moving parts that demonstrate time is really a magnificent emblem of the Earnshaw watchmaking legacy. The dial is replete with micro etchings and is cutaway to show off the inner movement, with the logo balancing out the rest of the dial at the 3 o’clock position. The indexes at the hour and the Hour, minute Breguet like hands are all carefully facetted and applied with precision and care.
The case - measuring 42 mm in diameter and 14 mm thick comes with a see-through case back, showing off the rotor that powers this 22 jewel automatic movement. A vintage style pumpkin crown synonymous with the Longitude case family aptly helps adjust time and does so as an extension to the fluid lines of the case.