c. 2005 Omega Speedmaster Moonwatch Professional Moonphase 3876.50.31 – Black Dial, Sapphire Crystal

Info

The Speedmaster Professional Moonphase reference 3876.50.31 is one of the most captivating variations ever produced within the historic Moonwatch line. Manufactured between 2003 and 2014, this model introduced a poetic twist to the Speedmaster’s technical tradition by adding the moonphase complication and an analog date hand—without compromising the identity of the Professional family.

The story of moonphase-equipped Speedmasters is long but relatively unknown: it began in 1985 with the rare “Speedymoon” – reference 345.0809 – produced in very limited numbers. After a decade-long absence, the moonphase complication returned in the early 2000s with this 3876.50.31, which retained the classic Moonwatch look while adding refined features such as sapphire crystal on both sides, a display caseback, and the iconic black dial with a moonphase and date sub-dial at 12 o’clock.

The moonphase disc, set against a deep blue starry sky, adds a visually striking element to the dial. The analog date hand completes the layout, seamlessly integrated into the overall aesthetic and functionality.

Inside beats the Omega caliber 1866, a decorated evolution of the 1863 manual-wind movement. The additional complications are beautifully showcased through the sapphire display back, enhancing the mechanical appeal of this elegant chronograph.

Reference 3876.50.31 is the perfect choice for those who appreciate the iconic heritage of the Speedmaster but seek something more exclusive—an expressive timepiece that blends mechanical depth, historical significance, and refined design. It’s the Moonwatch for those who know the legend… and want to carry a piece of the sky on their wrist.

Case, Bracelet, Dial & Glass

The 42 mm stainless steel case is in excellent condition, with no visible signs of wear to the naked eye. Only under magnification can you spot a few ultra-fine surface marks that are virtually imperceptible. Both polished and satin-brushed finishes are crisp and clean, preserving the fresh-from-the-factory feel. The black tachymeter bezel is also well preserved and free from noticeable flaws.

The black alligator leather strap is in good overall condition. It shows minor signs of wear on the inner lining, while the outer surface remains clean and free of significant wear. It has been fully sanitized using professional products and ozone treatment, ensuring maximum hygiene and safety for the wearer. The stainless steel pin buckle is in excellent condition as well, with only light, barely visible signs of use.

The black dial, highlighted by the moonphase disc set in a star-studded midnight blue sky, is the true centerpiece of this watch. Flawlessly preserved, it gives this Speedmaster a unique and poetic personality.

The sapphire crystal—both front and caseback—is perfectly clear, free of scratches or blemishes. It offers a sharp, uninterrupted view of the dial and the beautifully finished movement beneath.

Accessories & Warranty

Every component of this Omega Speedmaster Professional Moonwatch Moonphase reference 3876.50.31 has undergone strict quality control checks in our Omega-certified labs, passing all functional tests with excellence. The watch is in perfect working condition and ready to wear, with no service required.

The set includes a refined generic watch box, our personalized warranty card, and a certificate of authenticity and lawful provenance.

We offer a 2-year warranty from the date of purchase, covering the movement against mechanical malfunctions, excluding any damage caused by negligence or accidents. This guarantee ensures peace of mind, backed by a product of verified quality and a reliable after-sales service that meets the highest expectations.