Omega Speedmaster Moonphase Master Chronometer | Grey Dial | Green Bezel

The Omega Speedmaster Moonphase Ref. 304.23.44.52.06.001 is a highly distinctive modern Speedmaster, combining Omega’s iconic chronograph design with a beautifully executed moonphase complication. Housed in a 44.25mm stainless steel case, this reference features a grey sun-brushed dial, 18K yellow gold accents, and a green ceramic bezel with a tachymeter scale, giving the watch a unique and elevated presence within the Speedmaster family.

The beauty of this reference is its blend of sport, luxury, and complication. The moonphase display at 6 o’clock adds visual depth and character, while the Master Chronometer Calibre 9904 offers modern Omega performance, strong anti-magnetic capability, chronograph functionality, date indication, and approximately 60 hours of power reserve. With its steel and yellow gold construction, sapphire crystal, exhibition caseback, and original 100-meter water resistance rating, this Speedmaster Moonphase is a standout choice for someone looking for a more luxurious and uncommon Speedmaster.

Condition

Please review the photos carefully for an accurate representation. Light scratches, strap wear, case wear, crystal wear, or 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: 304.23.44.52.06.001

• Model: Speedmaster Moonphase Master Chronometer

• Case Diameter: 44.25mm

• Case Material: Stainless Steel with 18K Yellow Gold Accents

• Bezel: Green Ceramic Bezel with Tachymeter Scale

• Dial: Grey Sun-Brushed Dial

• Crystal: Sapphire Crystal

• Caseback: Exhibition Caseback

• Water Resistance: Originally rated 100 meters / 10 ATM; water resistance not guaranteed unless pressure tested

• Strap/Bracelet: Factory Strap Configuration

• Movement: Omega Co-Axial Master Chronometer Calibre 9904

• Power Reserve: Approximately 60 Hours

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

• Included: Original Warranty Card