Tudor Prince Oysterdate 90520 (1970-1979)

Presented for auction by Second Vintage This classic vintage Tudor Prince Oysterdate draws the eye with its beautifully preserved silver sunburst dial and intact, warm lume plots. Framed by a traditional engine-turned steel bezel and housed in a classic Oyster case retaining its original Rolex-signed crown and caseback, this reference 90520 offers a highly authentic and attractive aesthetic. Brand: Tudor Model: Prince Oysterdate Reference Number: 90520 Serial Number: 9608 Movement: Automatic, 25 jewels Dial: Silver sunburst with applied baton indices Case Size: 34mm (excluding the crown) Case Material: Stainless Steel Production Year: 1970s Condition: Good vintage condition. Timegrapher: -1-3s/day, performing remarkably well. Dial and Hands The exceptionally clean and attractive vintage dial features a well-preserved silver sunburst finish. Applied baton indices with black inserts provide excellent contrast, perfectly complemented by crisp black printing and a date window positioned at three o'clock. The lume dots at the outer edge of the indices remain intact, displaying a pleasing, warm patina. Sweeping above the dial, the original stick hands feature matching black inserts and luminous material that has aged consistently with the dial dots. The metal surfaces of the hands exhibit visible oxidation and patina, reflecting their age. Case and Crystal The 34mm stainless steel Oyster case features polished flanks and brushed lugs with traditional drilled lugholes. The watch retains its original Rolex-signed crown, displaying the coronet signature with an underline, though the knurling shows moderate wear. The engine-turned stainless steel bezel frames the dial handsomely, showing moderate wear and some softening of its textured edges. A flat acrylic crystal with a cyclops date magnifier protects the display, exhibiting light surface scratches visible under angled lighting. The case itself shows honest wear, with moderate scratches and handling marks consistent with age. Notably, there is heavy pitting and corrosion visible between the lugs, which partially obscures the serial number engraving. Movement Inside beats a Tudor-signed 25-jewel automatic movement, based on the ETA 2784, which operates at a high beat rate of 28,800 vibrations per hour. The rotor is distinctly engraved with "TUDOR" and "25 RUBIES AUTO-PRINCE SWISS MADE". Visually, the caliber maintains a generally clean appearance, showing only light surface marks on the rotor and plates, with no obvious signs of heavy corrosion or damage on the visible components. The timegrapher records a rate of -1-3s/day. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. Strap The watch is fitted with a fresh black leather strap featuring an alligator grain pattern and white contrast stitching. The strap appears unworn or very lightly used and is secured by an unsigned steel pin buckle. Condition Good vintage condition. The watch presents beautifully on the wrist, anchored by its exceptionally clean dial. Wear is honest and consistent with its era, including oxidation on the hands, moderate scratches across the case, and softening of the engine-turned bezel. As noted, significant localized pitting and corrosion are present between the lugs. The acrylic crystal bears light surface scratches. Mechanically, the movement is running exceptionally well, supported by a strong timegrapher result. Dimensions The case measures 34mm (excluding the crown). Remarks This Prince Oysterdate offers a highly attractive dial configuration with perfectly aged luminous material. The combination of the engine-turned bezel and the high-beat automatic movement makes this a highly capable and visually striking vintage daily wearer. History The Tudor Prince Oysterdate is a foundational model in the brand catalog, offering the robust architecture of its parent company alongside reliable, easily maintained mechanical calibers. This reference 90520 represents a standard and widely produced configuration from the 1970s, utilizing the high-beat ETA 2784 movement. Staying true to its shared heritage, the caseback of the reference 90520 is traditionally engraved to indicate its Rolex origins, reading "Original Oyster Case by Rolex Geneva," underscoring the enduring build quality of these classic vintage timepieces. 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: TUD-POR-0001