Omega
Omega Speedmaster CK2998-3 CK2998-3
The Omega Speedmaster CK2998-3 (reference CK2998-3) is a stainless steel watch with a black dial. It runs on the manual caliber 321.
Specifications
Case
- Reference
- CK2998-3
- Collection
- Speedmaster
- Case material
- Stainless steel
- Case shape
- Round
- Crystal
- Plexi
Dial and bezel
- Dial
- Black
- Bezel
- Aluminium tachymeter (DO90)
Movement
- Movement
- Manual
- Caliber
- 321
Production
- Production
- Vintage
Dial versions
This reference was made with these dials and finishes.
CK2998-3 Black
DO90 bezel; straight chrono hand; stepped dial
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 |
|---|---|---|---|---|---|
| CK2998-3 (This watch) | — | Stainless steel | Black | 321 | — |
| 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 movement does the Omega Speedmaster CK2998-3 CK2998-3 use?
- It uses the manual caliber 321.
- Is the Omega Speedmaster CK2998-3 CK2998-3 still in production?
- Vintage.
- What is the Omega Speedmaster CK2998-3 CK2998-3 made of?
- The case is stainless steel.
Catalog facts checked October 2026.