Longines Flagship 'Serviced' 8418 6 (1970-1979)

Now available at auction from Second Vintage A classic 1970s Longines Flagship HF featuring a high-frequency caliber and distinctive cushion case. Brand: Longines Model: Flagship HF Reference Number: 8418 6 Serial Number: 52214091 Movement: Automatic, Caliber 6651, 25 Jewels Dial: Silver with vertical brushed finish and applied indices Case Size: 34 mm (excluding the crown) Case Material: Stainless steel Production Year: 1974 Condition: Excellent vintage condition. Movement serviced on 23 September 2026. Timegrapher: +20+25s/day, running strong and steady. Dial and Hands The silver dial is exceptionally clean and well-preserved, distinguished by a striking vertical brushed finish. It features applied baton indices with black inserts that provide excellent contrast, paired with an applied Longines winged hourglass logo. All printed text and the minute track remain crisp and fully intact, showing no visible spotting, staining, or moisture damage. The baton hands feature matching black inserts and maintain clean surfaces with minimal signs of oxidation or wear, complementing the dial perfectly. Case and Crystal The stainless steel cushion case is characterized by brushed upper surfaces and polished flanks. It exhibits honest vintage wear with preserved geometry, displaying moderate scratches and handling marks consistent with normal use. The case edges remain reasonably defined without heavy polishing. The integrated case design flows smoothly without a distinct separate bezel. The watch is fitted with a signed crown bearing the Longines name and winged hourglass logo, showing defined knurling in good condition. The flat crystal is clear, with no major scratches, chips, or crazing visible. Movement Powering the watch is the Longines caliber 6651 automatic movement. The plates and bridges present a bright and clean appearance, with the rotor fully intact. Crisp, legible engravings indicate the caliber features 25 jewels and is adjusted to four positions and temperature. There is no visible corrosion, heavy oxidation, or damaged screw heads. Performing well within expected vintage tolerances; running strong and steady. The movement was serviced on 23 September 2026. Strap The watch is fitted with a period correct stainless steel multi-link bracelet. It secures via a fold-over clasp with no visible external signature. The bracelet shows moderate scratches and wear consistent with the case, offering a period-appropriate look. It accommodates a maximum wrist size of up to 20cm. Condition Excellent vintage condition. The movement was serviced on 23 September 2026 and, supported by the recorded timegrapher result, is running strong and steady. The dial and hands are exceptionally clean, free from notable spotting or oxidation. The stainless steel cushion case shows moderate scratches and handling marks consistent with normal wear, retaining its geometry and defined edges. The period correct bracelet displays corresponding moderate wear. Dimensions The case measures 34 mm (excluding the crown). Remarks This Flagship HF offers a highly attractive vertically brushed silver dial paired with a high-frequency movement. The combination of its distinctive 1970s cushion case and excellent preservation makes it a compelling choice for collectors of vintage Longines. History The Longines Flagship line has long been a pillar of the brand's catalog, recognized for its refined aesthetics and capable mechanical movements. In the 1970s, Longines introduced the Flagship HF (High Frequency), utilizing advanced calibers designed to offer superior accuracy. The distinctive cushion case of this era reflects the bold design language of the 1970s, providing a substantial presence while maintaining traditional elegance. The caliber 6651 is a respected automatic movement from this period, demonstrating Longines' commitment to precision engineering during a transformative decade for mechanical 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-AFX-0001