Omega
Omega Speedmaster Dark Side of the Moon Grey Side of the Moon 311.93.44.51.99.002
“Grey Side of the Moon”
The Omega Speedmaster Dark Side of the Moon Grey Side of the Moon (reference 311.93.44.51.99.002) is a 44.25 mm Grey ceramic watch with a grey dial. It runs on the automatic caliber 9300 with a 60-hour power reserve and is water resistant to 50 m. It is no longer in production.
Specifications
Case
- Reference
- 311.93.44.51.99.002
- Nickname
- Grey Side of the Moon
- Collection
- Speedmaster
- Case size
- 44.25 mm
- Case material
- Grey ceramic
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 50 m
- Bracelet / strap
- Grey leather strap, ceramic/titanium foldover clasp
Dial and bezel
- Dial
- Grey
- Bezel
- Ceramic, white Super-LumiNova tachymeter
Movement
- Movement
- Automatic
- Caliber
- 9300
- Power reserve
- 60 hours
Production
- Production
- Discontinued
Dial versions
This reference was made with these dials and finishes.
311.93.44.51.99.002 Grey Side of the Moon
Sand-blasted platinum 950 dial · “Grey Side of the Moon”
How it compares within the Speedmaster family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 311.93.44.51.99.002 (This watch) | 44.25 mm | Grey ceramic | Grey | 9300 | — |
| 310.30.42.50.04.001 | 42 mm | Stainless steel | White | 3861 | 2024– |
| 310.92.44.50.06.001 | 44.25 mm | Grey ceramic | Grey (skeletonised) | 3869 | 2025– |
| 310.92.44.50.06.002 | 44.25 mm | Grey ceramic | Grey (skeletonised) | — | 2025– |
| 318.90.45.79.01.003 | 45 mm | Titanium | Black | 5622 | 2022– |
| 332.10.41.51.01.001 | 40.5 mm | Stainless steel | Black | 9906 | 2022– |
| 332.10.41.51.03.001 | 40.5 mm | Stainless steel | Blue | 9906 | 2022– |
| 522.30.38.50.04.001 | 38 mm | Stainless steel / ceramic | White | 3330 | 2025– |
| 522.30.38.50.04.002 | 38 mm | Stainless steel / ceramic | White | 3330 | 2025– |
About the Speedmaster family
The Speedmaster was introduced in 1957 as a sports chronograph with the tachymeter scale on the bezel. It passed NASA's tests in 1965 and was worn on the Moon in 1969, which is why the hand-wound Professional is known as the Moonwatch. Its movement has gone from the caliber 321 to the 861 and 1861, and in 2021 to the Master Chronometer 3861.
Around the Moonwatch the line includes the Speedmaster Racing, the ceramic Dark Side of the Moon, automatic chronographs, the smaller Speedmaster 38 and many special editions. Dealers check the caliber, the crystal (Hesalite or sapphire), the caseback engraving and the reference, and on vintage pieces look closely at dial, bezel and hands.
Quick answers
- What size is the Omega Speedmaster Dark Side of the Moon Grey Side of the Moon 311.93.44.51.99.002?
- The Omega Speedmaster Dark Side of the Moon Grey Side of the Moon 311.93.44.51.99.002 has a 44.25 mm case.
- What movement does the Omega Speedmaster Dark Side of the Moon Grey Side of the Moon 311.93.44.51.99.002 use?
- It uses the automatic caliber 9300, with a 60-hour power reserve.
- How water resistant is the Omega Speedmaster Dark Side of the Moon Grey Side of the Moon 311.93.44.51.99.002?
- It is water resistant to 50 metres.
- Is the Omega Speedmaster Dark Side of the Moon Grey Side of the Moon 311.93.44.51.99.002 still in production?
- Discontinued.
- What is the Omega Speedmaster Dark Side of the Moon Grey Side of the Moon 311.93.44.51.99.002 made of?
- The case is Grey ceramic. Bracelet or strap: Grey leather strap, ceramic/titanium foldover clasp.
- What is the Omega Speedmaster Dark Side of the Moon Grey Side of the Moon 311.93.44.51.99.002 nicknamed?
- Dealers and collectors call it the “Grey Side of the Moon”.
Catalog facts checked October 2026.