Omega Speedmaster Automatic An exceptional and highly collectible Omega Speedmaster Day-Date (often referred to by collectors as the "Cosmos" or "Mark 40" edition). This timepiece elegantly merges the iconic Speedmaster racing DNA with a sophisticated triple-calendar complication. Driven by the robust and reliable automatic Omega Calibre 1151, this model stands out with its multi-functional matte black dial, contrasting red chronograph hands, and a distinct AM/PM 24-hour sub-dial split in blue and black. The case back proudly features the legendary Speedmaster Sea-Monster medallion alongside its serial number 56959535. Technical Specifications Brand: Omega Model: Speedmaster Day-Date (Triple Calendar / Cosmos) Reference Number: 3520.50.00 Serial Number: 56959535 (visible on case back) Movement: Automatic, Self-winding chronograph – Omega Calibre 1151 Functions: Chronograph, Tachymeter, Day, Date (indicated by the yellow aircraft pointer hand), Month, and a 24-Hour (AM/PM) Indicator. Case Material: High-grade Stainless Steel Case Diameter: 39 mm (excluding crown) Dial: Matte black with white Arabic numerals, luminous hands, and a blue/black 24-hour sub-dial at 9 o'clock. Crystal: Scratch-resistant sapphire crystal with anti-reflective treatment. Bezel: Fixed black bezel with Tachymeter scale. Strap: Aftermarket black leather strap with contrast stitching. Condition Report Case & Bezel: Good condition with honest signs of wear, surface micro-scratches, and minor flea bites consistent with its age, keeping its original lines sharp. Dial & Hands: Pristine condition. The colors remain vibrant, and the lume has aged gracefully. Movement: Clean and fully functional. The chronograph starts, stops, and resets perfectly to zero. The calendar quick-set function operates smoothly. Strap & Buckle: The black leather strap shows heavy signs of usage and patina on the interior, adding a vintage character, but may be replaced by the winning bidder depending on personal preference. Shipment with insurance