Overview This is a classic Zenith mechanical pocket watch with strong brand identity and a refined antique presence. The white dial with black Arabic numerals and subsidiary seconds at 6 o’clock gives the watch a clean and traditional layout, full of old Swiss pocket watch character. The silver case remains restrained and elegant, with a vacant cartouche to the back, while the inner dust cover adds further collectible depth through its medal and technical inscriptions. Together with the attached chain, it forms a complete and attractive antique ensemble. Its strongest appeal lies in the Zenith name, the 0.800 silver case, the 15 Rubis designation, and the richly inscribed inner dust cover. Technical and condition details Type: Mechanical pocket watch Winding: Crown wind and set Function: Running when tested. No long-term accuracy test has been performed. Dial layout: Central hours and minutes with subsidiary seconds at 6 o’clock Dial: White dial with black Arabic numerals, outer minute track, ornate period-style hands, and Zenith signature Case: Open-face 0.800 silver case with a plain back and central vacant cartouche. Inner case marked 0.800, Zenith, and numbered 3070253 / 2411 Movement: Signed Zenith mechanical movement. The inner dust cover is engraved with Grand Prix Paris 1900, 15 Rubis, Balancier Compensé, and Spiral Breguet. The movement structure appears complete Diameter: Approx. 51.99 mm Weight: Approx. 98.6 g Accessories: Old pocket watch chain included Condition: Honest antique condition with age-related wear. The case shows natural oxidation, surface marks, and edge wear. The dial shows visible ageing and hairlines, with cracks running from the centre into the upper area. The movement and inner covers remain reasonably preserved, and the watch retains a genuine period appearance. Collector’s highlights Zenith Swiss pocket watch with strong brand recognition and collector appeal 0.800 silver case with restrained classical styling and central cartouche Inner dust cover engraved with Grand Prix Paris 1900, 15 Rubis, Balancier Compensé, and Spiral Breguet Offered with an old chain for a more complete antique presentation 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.