How to Read an Omega Reference Number

Omega watch reference numbers are structured codes that provide specific information about the watch. These reference numbers can seem complex at first, but they follow a standardized format that reveals various details about the watch's model, movement, case material, and more. Here's a breakdown of what the different parts of an Omega reference number mean:

Breakdown of Omega Reference Numbers

An Omega reference number typically consists of 11 digits, grouped in sets. Here is an example of a reference number and what each set of digits represents:

Example Reference Number: 231.10.42.21.01.002

1. 231 – Collection Code:
- This first set of three digits indicates the collection or family of the watch. For example, 231 refers to the Seamaster Aqua Terra collection.

2. 10 – Case Material and Type:
- The next two digits describe the material and type of the case. For instance, 10 indicates a stainless steel case.

3. 42 – Case Size:
- The following two digits refer to the diameter of the case in millimeters. Here, 42 means the watch has a 42mm case diameter.

4. 21 – Movement Type:
- These two digits denote the movement type within the watch. For example, 21 typically indicates an automatic movement with a Co-Axial escapement.

5. 01 – **Dial Color:
- The next two digits specify the color of the dial. In this case, 01 represents a black dial.

6. 002 – Version Number:
- The final three digits are the version number or specific model variation. This helps differentiate between different versions of a model that may have slight variations.

Example Applied:

224.32.55.21.01.002 (for an Omega Seamaster Ploprof 1200M)

1. 224 – Seamaster Professional collection.
2. 32 – Stainless steel case with a rubber strap.
3. 55 – 55mm case size.
4. 21 – Automatic movement with Co-Axial escapement.
5. 01 – Black dial.
6. 002 – Specific model version.

Why Reference Numbers Matter

Understanding reference numbers can be crucial for collectors, buyers, and sellers to:
- Verify the authenticity of the watch.
- Identify specific features and variations.
- Determine the watch's place within Omega's extensive catalog.

By breaking down the reference number, you can gain a comprehensive understanding of the watch's specifications and features, making it easier to identify and appreciate the intricacies of Omega's diverse watch collections. For more detailed information, you can visit the official Omega website or consult with authorized Omega dealers.