In the late 18th century, during the second half of his watchmaking career, John Arnold—founder of Arnold and Son—devoted himself to creating the world’s most precise and rugged marine chronometers, for use by the British Navy. Arnold and Son’s modern-day Instrument Collection pays tribute to these timepieces with watches that are visually informed by the historical pieces and continue their pursuit of ultimate precision. One of the latest entries in this collection is the limited-edition Arnold and Son DSTB, …