UNWORN Omega Speedmaster Professional Moonwatch "Sapphire Sandwich" 310.30.42.50.01.002

The Modern Moonwatch in Its Most Versatile Configuration

Few watches have earned a place in history quite like the Omega Speedmaster Professional. From NASA's manned spaceflight program to becoming the first watch worn on the Moon, the Speedmaster has transcended watchmaking to become a genuine cultural icon. While its design has remained remarkably faithful to the original, today's Moonwatch incorporates thoughtful refinements that make it even more rewarding to own and wear.

Originally purchased in March 2026, this unworn example features the sought-after Sapphire Sandwich configuration, pairing a scratch-resistant sapphire crystal with an exhibition caseback that showcases Omega's beautifully finished Co-Axial Master Chronometer Caliber 3861. Complete with its original presentation set and the balance of the Omega factory warranty, it offers an opportunity to own one of watchmaking's most celebrated chronographs in like-new condition.

At A Glance

• Reference: 310.30.42.50.01.002
• Case Size: 42 millimeter
• Movement: Omega Co-Axial Master Chronometer Caliber 3861 (Manual Wind)
• Case Material: Stainless steel
• Bracelet: Stainless steel bracelet
• Dial: Black
• Crystal: Sapphire front and exhibition sapphire caseback
• Water Resistance: 50 meters
• Power Reserve: 50 hours
• Card Date: March 2026
• Factory Warranty: Balance of Omega factory warranty remaining
• Condition: Unworn

Condition

The watch remains unworn and presents in like-new condition. The original protective stickers were removed by the authorized dealer, and the watch may display the occasional faint handling mark from dealer handling or shipping. The sapphire crystal, case, bracelet, and clasp all present beautifully.

Please review the photos carefully, as they form part of the description and accurately represent the watch's condition.

Included With Watch

Included with the watch are the inner box, outer box, Essentials Guide, Moonwatch book, warranty card, Master Chronometer card, hang tag, cleaning cloth, and the stainless steel bracelet.

Why We Like It

The black dial Speedmaster Professional remains the definitive expression of the Moonwatch. While Omega has introduced countless special editions over the decades, this reference preserves the design language that has made the Speedmaster one of the most respected chronographs ever created. The manually wound Caliber 3861 continues the tradition of daily interaction that has always been central to the Moonwatch experience, creating a connection between owner and watch that automatic movements simply cannot replicate.

The Sapphire Sandwich configuration is the version many modern collectors ultimately choose because it blends heritage with everyday practicality. The sapphire crystal offers outstanding scratch resistance while the exhibition caseback reveals the beautifully decorated Co-Axial Master Chronometer Caliber 3861, allowing owners to appreciate the movement every time the watch is removed from the wrist. Rather than choosing between tradition and modern engineering, the Sapphire Sandwich delivers both. For collectors seeking a Moonwatch they can enjoy every day while still admiring one of Omega's finest contemporary movements, it remains one of the strongest configurations in the current lineup.

Full Specifications

• Reference Number: 310.30.42.50.01.002
• Model: Speedmaster Professional Moonwatch "Sapphire Sandwich"
• Movement: Omega Co-Axial Master Chronometer Caliber 3861 (Manual Wind)
• Case Material: Stainless steel
• Case Size: 42 millimeter
• Crystal: Sapphire front and exhibition sapphire caseback
• Water Resistance: 50 meters
• Power Reserve: 50 hours
• Dial: Black
• Bracelet: Stainless steel bracelet
• Card Date: March 2026
• Factory Warranty: Balance of Omega factory warranty remaining
• Location: Fort Worth, Texas

The Arieli Collection Difference

Every watch we offer is carefully inspected and accurately represented, with clear communication and a collector-first approach from start to finish. We offer fully insured overnight shipping within the United States, approved international delivery, and are always happy to provide additional photos or videos upon request.

Because this watch remains covered by Omega's factory warranty, you'll continue to enjoy the confidence of manufacturer support. Once that coverage expires, you'll also have access to our trusted watchmakers at fair, collector-friendly rates should service ever be needed.