Omega speedmaster automatic triple date

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This item is an Omega Speedmaster Automatic Triple Date Omega Speedmaster Automatic Triple Date wristwatch, specifically model 3521.30.00, which features a stainless steel case and a silver dial. The Omega Speedmaster Automatic Triple Date (or "Day-Date") is a 39mm, feature-packed, and versatile chronograph, often considered a great value in the pre-owned market. It displays the day and month at 12 o'clock, the date via a central pointer hand, and features a 24-hour sub-dial. Popular models, such as the 3520.50 or MK40, offer a complex, sporty aesthetic in a smaller, wearable package compared to the Professional Moonwatch. Key details of the Omega Speedmaster Triple Date include: Dimensions & Design: A 39mm stainless steel case (roughly 14mm thick) with a 44.5mm lug-to-lug, making it an excellent fit for smaller wrists or those preferring a classic, compact size. It often features a black or blue sunray dial with a tachymeter bezel. Complications: It features a full calendar—day, date, and month—plus a 24-hour indicator at the 9 o'clock sub-dial, alongside standard chronograph functions. Movement: Typically powered by the Omega Caliber 1151 or 1150 (based on the reliable Valjoux 7751), which is an automatic movement with a 44-54 hour power reserve. Display & Lume: Often uses tritium for lume in older models and features a distinctive, busy dial with multiple hands to track the triple calendar. Comfort & Wearability: Known for being a comfortable everyday watch with a stainless steel bracelet featuring brushed and polished links Show more