Omega Speedmaster Professional Moonwatch Ref 310.

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About the Watch:

With the release of the Speedmaster Professional Ref 310. came many significant updates to this cherished timepiece. Modernizing with a new co-axial Calibre 3861 hand-wind movement, it is the nostalgic return of the dot over 90 on the tachymeter bezel and the step-down dial that set this reference apart from its predecessors.

The History:

The Speedmaster was introduced in 1957 as a sports and racing chronograph, complementing Omega’s position as the official timekeeper for the Olympic Games. Its iconic place in history stems from its utilization by NASA for the Gemini Titan III crews and eventually by the astronauts on the Apollo 11 mission, which made it the first watch to be worn on the moon.

The Watch:

The Speedmaster Professional Ref 310. features a 42mm stainless steel case with a Hesalite crystal. The matte black dial has the familiar three recessed registers and a “step-down” dial, which has not been utilized in a Speedmaster dial for over 50 years, giving dimension and depth to the face of the watch. The number of hash marks between the minutes has gone from 4 to 2, giving a less busy appearance. The tachymeter bezel insert is aluminum and marks the return of the dot over 90, which is a welcome return to the original Moonwatch design. Powered by the updated Calibre 3861 manual-wind Co-Axial movement, the Ref 310. is a certified Master Chronometer approved by METAS and resistant to magnetic fields reaching 15,000 gausses. This movement features a free-sprung balance with a silicon balance spring, a Rhodium-plated finish, and bridges etched with straight Geneva waves. This timepiece has a power reserve of 50 hours and is water resistant to 50 meters. The stainless steel bracelet has brushed links with a taper from 20mm at the lugs to 15mm at the clasp.

The Details:

This Omega Speedmaster Professional Ref 310. is in very good condition, with minimal wear on the case and lugs, as visible in the photos. This piece was purchased new in 2021 and remains under factory warranty. All outer and inner boxes are included, including the operating instruction booklet, warranty card, pictograph card, and chronometer certification card.

  • Brand | Omega
  • Reference | 310.
  • Movement | Calibre 3861
  • Model | Speedmaster Professional, Moonwatch
  • Strap | Bracelet
  • Crystal | Hesalite
  • Style | Chronograph Watches
  • Case Width | 42mm
  • Case Height |
  • Lug Width |