Longines - Ultra-Chron Chronometer - No reserve price - 8353 4 - Men - 1974

Now available at auction from Second Vintage A sought-after chronometer-certified variant of the Longines Ultra-Chron, this 1974 example pairs a distinctive cushion case with a high-beat Caliber 6651 movement. The striking vertically brushed silver dial offers exceptional preservation, complemented perfectly by the original signed Longines mesh bracelet. Brand: Longines Model: Ultra-Chron Reference Number: 8353 4 Serial Number: 51870630 Movement: Automatic, Caliber 6651, 25 jewels, 28800 vph Dial: Vertically brushed silver with applied indices and logos Case Size: 35mm (excluding the crown) Case Material: Stainless Steel Production Year: 1974 Condition: Good vintage condition. Timegrapher: -19s-21s/day, running strong and steady. Dial and Hands The vertically brushed silver dial is exceptionally clean and well-preserved, featuring applied indices with black inserts alongside the applied Longines and Ultra-Chron logos. The crisp printing shows minimal signs of aging. The stick hands, also detailed with black inserts, are aged with visible oxidation and surface grime, particularly near the center post. Case and Crystal The stainless steel cushion-shaped case features brushed upper surfaces and polished flanks. It displays honest vintage wear with scattered scratches and minor dings, though the case geometry remains generally well-defined. The polished smooth bezel ring is integrated directly into the case design and shows light surface scratches consistent with the rest of the case. The crown is signed with the Longines name and winged hourglass logo, showing moderate wear to the knurling. The domed acrylic crystal is clear with no significant scratches or crazing visible. Movement Powering this timepiece is the automatic Caliber 6651, a 25-jewel high-beat movement operating at 28,800 vibrations per hour. The clean movement features bright plates and bridges with no obvious signs of corrosion or heavy tool marks, while the rotor shows minor surface marks. The plates are proudly engraved with LONGINES CHRONOMETER and ADJUSTED FOUR 4 POSITIONS AND TEMPERATURE, confirming its precision pedigree. The timegrapher records a rate of -19s-21s/day. Performing well within expected vintage tolerances; running strong and steady. Strap The watch is fitted with its original signed stainless steel mesh bracelet. The clasp features an applied gold-tone Longines logo and shows normal wear with light scratches. The bracelet accommodates a maximum wrist size of 18cm. Condition Good vintage condition. The stainless steel case displays honest wear with scattered scratches and minor dings, while retaining its defined cushion geometry. The silver dial is remarkably clean and well-preserved, contrasting with the visible oxidation on the handset. The original mesh bracelet shows normal, age-appropriate wear. Supported by the timegrapher data, the chronometer-certified movement is running strong and steady. Dimensions 35mm (excluding the crown) Remarks This Ultra-Chron stands out for its combination of chronometer certification, a brilliantly preserved vertically brushed dial, and the presence of its original signed mesh bracelet. It represents a highly capable and attractive 1970s Longines. History Introduced in the late 1960s to mark Longines' centenary, the Ultra-Chron line was celebrated for its high-beat automatic movements, designed to offer superior timekeeping stability. The chronometer-certified variants represent a highly sought-after tier within the Ultra-Chron family, reflecting the Swiss watch industry's dedication to mechanical precision during a transformative decade for horology. Payment and Shipping Payment must be completed within 1–3 days after purchase. Your watch will be professionally and securely packaged, then shipped with tracking and insurance for your peace of mind. We use fast express shipping, with typical delivery within 1–4 business days, depending on the destination. Please note that vintage watches may show minor signs of wear, aging, or imperfections, which are considered normal for watches of this age. We kindly ask you to review all photos carefully before bidding. We photograph each watch from multiple angles to provide the most accurate representation possible, and the photos form an important part of the description. The timegrapher assessment if provided is seen as an indication of the movement’s condition under fully wound testing conditions. As with all vintage watches, results may vary in daily use. If you have any concerns regarding functionality or defects after delivery, please contact us within 3 days of receiving the watch so we can assist you. As with all used watches, water resistance is not guaranteed. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: LON-ACX-0003