This is the Omega Speedmaster Day Date reference ST 375.0084, often referred to as the MK40. Produced in the 1990s, this model has developed a strong following for its distinctive, colorful dial layout and full calendar functionality, housed in the familiar Speedmaster case. The matte grey dial features a well-balanced mix of color and function. Blue, yellow, and red accents add visual interest without feeling overdone. The 24-hour subdial at nine o'clock stands out with its half-blue design, and the outer date track integrates cleanly into the layout. Aged lume on the hands and indices gives the watch a slightly vintage feel. The watch is running well, with all functions operating properly. It’s offered on a strap as shown, with no box or papers. A great example of a lesser-seen Speedmaster reference that offers both complication and personality. Timestamp: [https://static.wixstatic.com/media/17bf69\_91c39b91daed4bfe8d61c72c5950a087\~mv2.jpg](https://static.wixstatic.com/media/17bf69_91c39b91daed4bfe8d61c72c5950a087~mv2.jpg) Yours for $2700 via bank wire or Zelle. Have references on WUS, Reddit, TRF, and 100% feedback on eBay. You can reach me via 312-278-3218 / PM / [info@timepiecetreasurebox.com](mailto:info@timepiecetreasurebox.com). Follow me @ [www.timepiecetreasurebox.com](http://www.timepiecetreasurebox.com), on IG @ [timepiece\_treasure\_box](https://www.instagram.com/timepiece_treasure_box/), or on FB @ [Timepiece Treasure Box](https://www.facebook.com/profile.php?id=61566943652417). Thanks for looking.