Featuring a spectacular black aventurine glass dial that glitters like deep space, this Moonphase Professional pairs the soul of Apollo with a mother-of-pearl moon floating at 12 o’clock. Discontinued in the early 2020s, the bracelet version of this reference is the harder-to-find sibling of its leather-strap twin. Caseback engraved with the words every Speedy lover knows by heart, “The First Watch Worn on the Moon.”

Presents itself in mint condition with little to no signs of wear. The aventurine dial is the showstopper displaying a true galaxy on the wrist, with hundreds of natural silvery flecks that shift and twinkle every time light hits the boxed sapphire crystal, looking less like a watch face and more like a Hubble snapshot of the Milky Way. Just above it, the small mother-of-pearl moon glows with an opal-like iridescence inside its 12 o’clock aperture, a tiny luminous full moon hanging in a forever-night sky. Wrapped around it all is the polished-and-brushed five-link steel bracelet that catches every angle of light like a chrome muscle car at golden hour.

Functions include hours, minutes, small seconds, central chronograph seconds, 30-minute chronograph counter, 12-hour chronograph counter, date, and moonphase. The pull-out crown at 3 o’clock manually winds the caliber 1866, when the crown is pulled to the outermost position the minute hand can be quickset by rotating it. The top pusher at 2 o’clock starts and stops the chronograph while the bottom pusher at 4 o’clock resets all three chronograph hands to zero. Setting the moonphase is as simple as advancing the date 24 hours at a time until the little mother-of-pearl moon under the aperture matches tonight’s actual sky using a pusher tool. These two pushers can be accessed opposite of the crown side on the case closest to the top left lug.

A watch built for the collector who already speaks fluent Speedmaster and wants the chapter most people skipped, equal parts Buzz Aldrin and La La Land planetarium scene. Anyone who loves the moon-landing mythology of the Moonphase but wants a piece that quietly says “I know what I’m doing” should give this discontinued aventurine Speedy a long look. Rare on a bracelet, gorgeous in any light, and engineered around the same manual-wind soul that went to the lunar surface in 1969, a once-only chapter in Omega’s playbook that they’re never running again.