Presented for auction by Second Vintage The Omega Speedmaster Day-Date, often affectionately known among collectors as the Triple Calendar, represents one of the most mechanically complex and visually dynamic iterations of the legendary Speedmaster lineage. Combining a robust automatic chronograph with a full calendar complication, this reference 3520.50.00 is a masterclass in dial layout and everyday utility. Its utilitarian black dial and crisp white accents offer exceptional legibility, while the iconic lyre lug case ensures it wears with the unmistakable presence of a classic Omega tool watch. Brand: Omega Model: Speedmaster Day-Date Reference Number: 3520.50.00 / 175.0084 Serial Number: 59273756 Movement: Automatic caliber 1151 Dial: Matte black dial with crisp white printing and luminous markers, exceptionally clean condition Case Size: 39 mm (excluding the crown) Case Material: Stainless steel Production Year: 1998 Condition: Near-mint condition with outstanding preservation Dial and Hands The matte black dial of this Speedmaster is a superb example of high-information design, perfectly balancing the chronograph and triple calendar complications. The typography is executed in a crisp, white sans serif font that remains flawlessly preserved, with no visible print loss, fading, or spotting. The day and month apertures at twelve o'clock are sharp and perfectly aligned. The dial features applied luminous baton indices that present a clean, bright white appearance, matching the luminous fill on the baton hour and minute hands. The specialized hands, including the arrow tipped pointer date and the distinctive twenty-four-hour indicator at nine o'clock, are entirely free of oxidation or degradation. The dial is in exceptionally clean condition, showing no moisture marks, scratches, or surface damage, making it a stellar specimen for the discerning collector. Case and Crystal The thirty-nine millimeter stainless steel case retains its factory intended geometry, featuring Omega's signature twisted lyre lugs. The transitions between the brushed flanks and the polished facets are remarkably sharp, indicating careful preservation over the decades. The black aluminum tachymeter bezel insert is in fantastic condition, with highly legible numerals and virtually no signs of edge wear or scuffing. The pushers and the Omega signed crown are crisp and actuate smoothly. The sapphire crystal is clean and unmarred, offering an unobstructed view of the complex dial below. The solid caseback features a deeply engraved Speedmaster seahorse medallion, which remains crisp and well defined, alongside the clearly legible serial number engraving. Movement Powering this complex timepiece is the Omega caliber 1151, a highly capable twenty-five jewel automatic chronograph movement. Close inspection of the movement reveals meticulous finishing, including circular graining on the base plates and Geneva waves across the winding rotor, which bears the clear OMEGA 1151 engraving. The components present beautifully, with no signs of tarnishing, moisture intrusion, or mishandling. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The timegrapher results show an outstanding -2-4s/day with strong amplitude. Strap The watch is fitted with its original Omega stainless steel bracelet, featuring solid links and a finely brushed finish. The endlinks are correctly stamped with the reference code 850, and the robust folding clasp is proudly signed with the deeply engraved Omega logo. The bracelet shows minimal stretch and only the lightest handling marks, perfectly complementing the overall near-mint presentation of the case. Condition This timepiece is presented in near-mint condition. The unblemished dial, sharp case lines, and exceptionally clean movement collectively speak to a life of careful ownership. The original finishes remain highly intact, and the watch exhibits only the faintest signs of careful handling, making it a premium acquisition for any serious Omega enthusiast. Dimensions The stainless steel case measures 39 mm in diameter, excluding the signed crown. The watch is presented on its original bracelet, sized to comfortably fit a wrist of up to 19 cm. Remarks The Speedmaster Day-Date stands as a testament to Omega's ability to seamlessly integrate high complications into a robust, sports oriented chassis. This specific example, with its flawless monochromatic aesthetic and superb mechanical health, represents a highly wearable and deeply respected chapter in the Speedmaster story. History Introduced in the 1990s, the Speedmaster Day-Date expanded the legendary chronograph family by incorporating a highly practical triple calendar complication. While the original Speedmaster Professional was defined by its space-faring legacy, the automatic Day-Date models were designed for the modern professional, offering a wealth of information at a glance. This reference 3520.50.00 captures the essence of that era, providing collectors with an intricately engineered and visually striking variation of one of the world's most famous chronographs. Payment and Shipping Payment must be completed within 1–3 days after purchase. Your watch will be professionally and very securely packaged, and shipped with tracking and insurance for your peace of mind. We ship via fast express service, with typical delivery in 1–4 business days (destination dependent). Note that with vintage watches, minor signs of wear, aging, or imperfections may be present and are considered normal for watches of this age. Please review all photos carefully before bidding. We strive to photograph each watch from multiple angles for the most accurate representation. The photos form an important part of the description. If there are any concerns of functionality or defects after delivery, make sure to contact us within 3 days of receiving the watch so we can assist you. As with all vintage watches, water resistance is not guaranteed. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: OME-OSA-0034