Presented for auction by Second Vintage This classic 1950s Longines Conquest Calendar is a sought-after collector favourite, distinguished by its heavily patinated dial and the remarkably intact gold and green enamel fish medallion on the caseback. Finding an early Conquest with this delicate medallion so well-preserved adds significant appeal for those who appreciate honest vintage character and historical details. Brand: Longines Model: Conquest Calendar Reference Number: 9004 6 Serial Number: 10373730 Movement: Automatic, caliber 19 ASD Dial: Heavily patinated with uniform spotting and applied indices Case Size: 35 mm (excluding the crown) Case Material: Stainless Steel Production Year: 1950s Condition: Good vintage condition. Movement serviced on 25 June 2026. Timegrapher: +9s+12s/day with strong amplitude, performing remarkably well. Dial and Hands The dial displays heavy, uniform spotting and discoloration across the entire surface, presenting a highly distinctive and heavily patinated vintage character. Despite this significant aging, the printed text, including the Longines and Conquest Calendar signatures, remains clearly legible. The dial features applied faceted indices with intact lume plots, alongside a neatly framed date window positioned at 3 o'clock. The dauphine style hands show dark oxidation and surface wear consistent with the dial's age, while their lume fills remain visually intact but naturally aged. Case and Crystal The 35 mm stainless steel case shows honest vintage wear, with moderate surface scratches and wear marks throughout, though the lugs retain their generally defined form. The smooth polished steel bezel exhibits light scratches consistent with the overall case wear. The watch is fitted with its original scalloped crown, clearly signed with the Longines text and winged hourglass logo. Turning the watch over reveals a notable detail: the exterior caseback features a well-preserved, beautifully intact gold and green enamel fish medallion. The inner caseback is cleanly stamped with the reference 9004 6 and ACIER INOX. The domed acrylic crystal shows minor surface scratches and visible dust. Movement Powering the watch is the Longines caliber 19 ASD automatic movement, featuring 19 jewels. The movement has a clean overall appearance with no obvious signs of corrosion, displaying perlage finishing on the base plates and a brushed finish on the rotor. Engravings, including the serial number 10373730, are crisp and clear. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The timegrapher records +9s+12s/day with strong amplitude. The movement was serviced on 25 June 2026. Strap The watch is fitted with a black leather strap featuring white contrast stitching. It shows light visible wear and comfortably complements the vintage aesthetic of the timepiece. Condition Good vintage condition. The movement was serviced on 25 June 2026 and, supported by the recorded timegrapher result, is performing very strongly. The case shows moderate surface scratches and wear but retains its form, while the caseback medallion is notably well-preserved. The dial exhibits heavy, uniform spotting and discoloration, and the hands show dark oxidation, reflecting significant natural aging. The domed crystal has minor surface scratches, and the strap shows light wear. Dimensions The case measures 35 mm in diameter, excluding the crown. Remarks This Conquest Calendar is notable for its remarkably intact gold and green enamel caseback medallion, a delicate detail often lost to time. Combined with its distinctively patinated dial, crisp automatic caliber 19 ASD, and original scalloped crown, it offers a compelling blend of strong mechanics and honest vintage charm. History Introduced in the mid-1950s, the Longines Conquest line represented a major step forward for the brand in the post-war era, combining robust automatic movements with elegant, durable cases. The addition of the calendar function shortly after the initial launch made it highly practical for daily wear. Early Conquest models are highly regarded by enthusiasts, particularly for their distinctive caseback medallions, which served as a hallmark of quality. The caliber 19 ASD is well-respected in collector circles for its reliable architecture and refined finishing, reflecting Longines' strength as an independent manufacture during this era of Swiss watchmaking. 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-0002