This remarkable wandering hour watch was made by William Knottesford in London around 1670—five years before the invention of the spiral balance spring that made accurate timekeeping possible. See this extraordinary piece and other early English pocket watches on display at the National Watch & Clock Museum. #nawcc #horology #wanderinghour #williamknottesford #watchmuseum #17thcentury #englishwatches #pocketwatch | National Watch & Clock Museum

Before 1883, America ran on "sun time" - every town set clocks by when the sun was highest. But as railroads exploded from only 23 miles in 1830 to over 100,000 miles by the 1880s, this created scheduling chaos. The solution changed how humans think about time forever. 🏛️ See this exhibit and more at the NAWCC Museum - where time comes alive!�� #NAWCC #Horology #RailroadHistory #AmericanHistory #TimeKeeping | National Watch & Clock Museum

Few names in horology carry more weight than Patek Philippe. This pocket watch, made around 1910, reflects the brand’s enduring commitment to precision, design, and mechanical excellence. Its 21-jewel movement received a Bulletin de Marche from the Geneva Observatory, awarded only after the watch passed one of the era’s most demanding chronometer trials. These multi-week tests evaluated accuracy in various positions and temperatures under strict scientific conditions. #NAWCC #NationalWatchAndClo