Omega Speedmaster Moonwatch Professional 42mm Sedna Gold/Steel 310.20.42.50.99.001

The Omega Speedmaster Moonwatch Professional is arguably the most historically significant wristwatch ever made, having served as NASA's official chronograph for crewed space missions and earning its place in history on the wrists of astronauts during the Apollo program. Reference 310.20.42.50.99.001 carries that extraordinary legacy forward while introducing a boldly luxurious aesthetic — the combination of stainless steel and Omega's proprietary Sedna gold alloy gives this Speedmaster a warmth and elegance that sets it apart from the classic all-steel versions without compromising the model's iconic sporting character.

The 42mm case retains the Speedmaster's instantly recognizable asymmetric cushion shape, with Sedna gold applied to the crown guards, pushers, and case flanks to create a two-tone presentation that is at once sporty and dressy. The pink-toned index dial is a departure from the traditional black-dial Moonwatch, offering a softer, more luminous face that catches light beautifully across the subdials and applied hour markers. The tachymeter scale on the bezel — a hallmark of every Speedmaster since 1958 — is rendered here in matching Sedna gold, tying the entire design together with precision.

Powering this Speedmaster is Omega's manual-winding chronograph movement, consistent with the Moonwatch Professional line's commitment to the hand-wound experience that has defined the model since its racing origins in the 1950s. Winding the crown each morning is a ritual that connects the owner to decades of horological and aerospace history, and Omega's manufacturing standards ensure that this movement is built to exacting tolerances for long-term reliability and accuracy.

On the wrist, the 310.20.42.50.99.001 commands immediate attention. The 42mm diameter sits comfortably across a range of wrist sizes, and the integrated steel-and-Sedna-gold bracelet provides both security and a cohesive, flowing look that makes this Speedmaster feel as at home at a formal dinner as it does at a motorsport event. The interplay of polished and brushed surfaces across the bracelet links adds depth and texture, a hallmark of Omega's contemporary finishing standards.

For collectors and enthusiasts who want to buy a Speedmaster Moonwatch that transcends the everyday, reference 310.20.42.50.99.001 represents exceptional long-term desirability. The combination of Sedna gold construction, pink index dial, and the Moonwatch Professional pedigree makes this a scarce and highly sought-after reference in the secondary market. Offered brand new with complete box and papers, this is one of the finest examples available for sale today.

At Bizak and Co., we specialize in sourcing and presenting luxury timepieces of exactly this caliber. When you buy online at bizakandco.com or reach out to our team directly, you receive not only a pristine watch with verified provenance but also the expertise and personalized service of a trusted luxury watch dealer. We invite you to explore this reference and our full Omega Speedmaster collection today.