Omega
Omega Speedmaster X-33 Marstimer 318.90.45.79.01.003
The Omega Speedmaster X-33 Marstimer (reference 318.90.45.79.01.003) is a 45 mm titanium watch with a black dial. It runs on the quartz caliber 5622 and is water resistant to 30 m. It was introduced in 2022 and is still in production.
Specifications
Case
- Reference
- 318.90.45.79.01.003
- Collection
- Speedmaster
- Case size
- 45 mm
- Thickness
- 14.9 mm
- Case material
- Titanium
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 30 m
- Bracelet / strap
- Titanium
Dial and bezel
- Dial
- Black
- Bezel
- Aluminium insert
Movement
- Movement
- Quartz
- Caliber
- 5622
Production
- Production
- 2022 – today (current)
Dial versions
This reference was made with these dials and finishes.
318.90.45.79.01.003 Black
Black
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 |
|---|---|---|---|---|---|
| 318.90.45.79.01.003 (This watch) | 45 mm | Titanium | Black | 5622 | 2022– |
| 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– |
| 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– |
| 332.10.41.51.10.001 | 40.5 mm | Stainless steel | Green | 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 X-33 Marstimer 318.90.45.79.01.003?
- The Omega Speedmaster X-33 Marstimer 318.90.45.79.01.003 has a 45 mm case, 14.9 mm thick.
- What movement does the Omega Speedmaster X-33 Marstimer 318.90.45.79.01.003 use?
- It uses the quartz caliber 5622.
- How water resistant is the Omega Speedmaster X-33 Marstimer 318.90.45.79.01.003?
- It is water resistant to 30 metres.
- Is the Omega Speedmaster X-33 Marstimer 318.90.45.79.01.003 still in production?
- Yes, it is a current reference.
- When did the Omega Speedmaster X-33 Marstimer 318.90.45.79.01.003 come out?
- It was introduced in 2022.
- What is the Omega Speedmaster X-33 Marstimer 318.90.45.79.01.003 made of?
- The case is titanium. Bracelet or strap: Titanium.
Catalog facts checked October 2026.