Overview This is an antique silver-cased pocket watch from OMEGA, featuring a golden guilloché dial with Arabic numerals and a neat small seconds sub-dial at 6 o'clock, exuding the classic gentlemanly charm of the early 20th century. The 0.900 silver case is paired with a substantial gold-plated watch chain, and the inner dust cover is engraved with the "GRAND PRIX PARIS 1900" medal motifs from the Paris Exposition Universelle. It is a fine piece with strong brand history and collectible value, most notable for retaining the complete Paris Grand Prix commemorative engravings and matching chain, bearing clear historical markers. Technical and condition details Type: Open-face antique pocket watch, OMEGA Winding: Manual winding Function: Hours, minutes, small seconds; Running when tested. No long-term accuracy test has been performed Layout: Central hour and minute hands, small seconds sub-dial at 6 o'clock, outer minute track Dial: Golden guilloché dial with black Arabic numerals, central OMEGA branding, minor signs of age-related oxidation Case: 0.900 silver case with normal wear and scratches on the edge, inner dust cover engraved with "OMEGA GRAND PRIX PARIS 1900" and seven medal motifs, showcasing exquisite craftsmanship Movement: OMEGA manual winding movement with gilt brass plates, visible gears and brand engravings Diameter: Approximately 51.14 mm Weight: Approximately 86.9 g Included accessories: A complete gold-plated curb-link watch chain with robust links, a large spring ring clasp and safety chain, offering a substantial feel and warm patina Condition: Well-preserved overall, with natural wear on the case, minor oxidation on the dial, complete movement structure, and intact chain with well-preserved plating Collector’s highlights From OMEGA, a highly recognizable brand with rich historical heritage Inner dust cover engraved with "GRAND PRIX PARIS 1900" medal motifs, a key testament to OMEGA’s historical honors 0.900 silver case with original serial number and silver hallmarks, ensuring clear provenance Complete gold-plated curb-link watch chain with robust design and safety clasp, offering a substantial feel and greatly enhancing wear and display value Golden guilloché dial with strong vintage appeal Movement retains clear OMEGA engravings with stable mechanical structure Photos form an important part of the description and may show details more clearly than text. Please review all images carefully and assess the item accordingly.