Omega Speedmaster Professional Moonphase I Ref. 311.30.44.32.01.001

The Omega Speedmaster Professional Moonwatch Moonphase Ref. 311.30.44.32.01.001 is a distinctive and highly complicated variation of the classic Speedmaster. It features a substantial 44.25mm stainless steel case, black ceramic tachymeter bezel, sapphire crystal, exhibition caseback, and matching stainless steel bracelet.

The standout feature is its black aventurine “starry sky” dial, which creates a shimmering appearance reminiscent of the night sky. The traditional chronograph layout is joined by a moonphase display and pointer date at 12 o’clock, giving the watch added functionality while preserving the recognizable Speedmaster design. Luminous hands and applied markers provide strong contrast against the dark dial.

Powered by the manually wound Omega Calibre 1866, the watch offers chronograph, date, and moonphase functions with an approximately 48-hour power reserve. The decorated movement can be viewed through the sapphire exhibition caseback, adding further mechanical appeal to this uncommon Speedmaster configuration.

Condition

Please review the photos carefully for an accurate representation. Light scratches, bracelet wear, bezel wear, crystal wear, or other signs of use consistent with age may be present and do not affect functionality. The watch presents well overall with expected wear for its age.

Technical Data

• Reference: 311.30.44.32.01.001

• Model: Speedmaster Professional Moonwatch Moonphase

• Case Diameter: Approximately 44.25mm

• Case Material: Stainless Steel

• Bezel: Stainless Steel Bezel with Black Ceramic Tachymeter Insert

• Dial: Black Aventurine “Starry Sky” Dial

• Hour Markers: Applied Luminous Hour Markers

• Crystal: Scratch-Resistant Sapphire Crystal with Anti-Reflective Treatment

• Caseback: Transparent Sapphire Exhibition Caseback

• Bracelet: Stainless Steel Bracelet with Folding Clasp

• Movement: Omega Calibre 1866 Manual-Wind Chronograph

• Jewels: 18

• Power Reserve: Approximately 48 Hours

• Water Resistance: Originally rated to 100 meters; water resistance not guaranteed

• Functions: Hours, Minutes, Small Seconds, Chronograph, Pointer Date, Moonphase and Tachymeter