Omega
Omega Constellation Co-Axial Master Chronometer 41 131.33.41.21.03.001
The Omega Constellation Co-Axial Master Chronometer 41 (reference 131.33.41.21.03.001) is a 41 mm stainless steel watch with a blue dial. It runs on the automatic caliber 8900 with a 60-hour power reserve and is water resistant to 50 m. It was introduced in 2020.
Specifications
Case
- Reference
- 131.33.41.21.03.001
- Collection
- Constellation
- Case size
- 41 mm
- Case material
- Stainless steel
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 50 m
- Bracelet / strap
- Leather strap
Dial and bezel
- Dial
- Blue
- Bezel
- Fixed, ceramic, Roman numerals
Movement
- Movement
- Automatic
- Caliber
- 8900
- Power reserve
- 60 hours
- Frequency
- 25,200 vph
- Jewels
- 39
- Functions
- Date
Production
- Production
- 2020 – today
How it compares within the Constellation family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 131.33.41.21.03.001 (This watch) | 41 mm | Stainless steel | Blue | 8900 | 2020– |
| 123.10.35.60.01.001 | 35 mm | Stainless steel | Black | — | — |
| 131.10.39.20.02.001 | 39 mm | Stainless steel | Silver | 8800 | 2019– |
| 131.12.41.21.06.001 | 41 mm | Stainless steel | — | — | — |
| 131.13.34.20.02.001 | 34 mm | Stainless steel | — | — | — |
| 131.23.41.21.10.001 | 41 mm | Stainless steel / Yellow gold | — | — | — |
| 131.30.41.21.04.001 | 41 mm | Stainless steel | White | 8900 | 2020– |
| 131.30.41.21.99.001 | 41 mm | Stainless steel | — | — | — |
| 1514.20.00 | — | Stainless steel | — | — | — |
About the Constellation family
The Constellation was introduced in 1952 as Omega's line of automatic chronometers, with an observatory medallion on the caseback and, on many vintage pieces, a faceted pie-pan dial. In 1982 the Manhattan design brought the four claws, or griffes, on the bezel and the integrated bracelet that define the modern line.
The current generation, from 2019 and 2020, uses Master Chronometer calibers such as the 8800 and 8900, in steel, two-tone and Sedna or Moonshine gold versions, often with Roman numeral bezels. The catalog also lists earlier quartz references. Dealers separate the vintage chronometers from the claw-bezel models first, then identify size, movement and metal from the reference.
Quick answers
- What size is the Omega Constellation Co-Axial Master Chronometer 41 131.33.41.21.03.001?
- The Omega Constellation Co-Axial Master Chronometer 41 131.33.41.21.03.001 has a 41 mm case.
- What movement does the Omega Constellation Co-Axial Master Chronometer 41 131.33.41.21.03.001 use?
- It uses the automatic caliber 8900, with a 60-hour power reserve.
- How water resistant is the Omega Constellation Co-Axial Master Chronometer 41 131.33.41.21.03.001?
- It is water resistant to 50 metres.
- When did the Omega Constellation Co-Axial Master Chronometer 41 131.33.41.21.03.001 come out?
- It was introduced in 2020.
- What is the Omega Constellation Co-Axial Master Chronometer 41 131.33.41.21.03.001 made of?
- The case is stainless steel. Bracelet or strap: Leather strap.
Catalog facts checked September 2026.