Rare GP Wristwatch (1900–1910 / Swiss / Silver) Description A historically significant early wristwatch from GP, housed in its original Swiss silver case (0.800 fineness) with authentic hallmarks. This piece represents one of the earliest wristwatch designs produced in series, reflecting GP’s pioneering role in the transition from pocket watches to wristwatches. Details Movement: GP 6088+ Case: 0.800 silver, faceted pattern Diameter: 31 mm (excluding crown) Estimated Production: 1900–1910 Hallmarks Grouse assay mark with letter “n” – Noirmont assay office Half‑moon & crown – German import law 0.800 silver purity mark Two pine cones – Swiss control marks Condition Original and fully functional. Keeps time and presents exceptionally well for its age. Case details and hallmarks remain sharp and clearly visible. Historical Significance GP’s heritage reaches back to the late 18th century, and by the early 1900s the manufacture was recognized for precision, technical innovation, and refined finishing. GP was among the earliest manufacturers to produce wristwatches. This watch belongs to that formative era of wristwatch development, making it a rare and authentic piece of horological history. About the Hallmarks Grouse + “n”: Introduced in 1882, the grouse symbol guarantees 0.800 silver fineness. The letter “n” identifies the Noirmont assay office, close to La Chaux‑de‑Fonds—GP’s historic home—reinforcing the authenticity and regional heritage of this watch. Half‑Moon & Crown: Required under German import regulations from 1886 to ca. 1910. This mark confirms verified silver purity for items entering Germany and illustrates GP’s early international distribution. 0.800 & Pine Cones: Standard Swiss control marks certifying silver quality and origin.