Omega 210.30.42.20.03.001 Blue Seamaster 42mm 2020
The Omega 210.30.42.20.03.001 Blue Seamaster 42mm 2020 brings together OMEGA’s recognizable Seamaster Diver 300M design with modern mechanical technology and a distinctive blue aesthetic. Featuring a 42mm stainless steel case, blue ceramic dial and bezel, stainless steel bracelet, and OMEGA’s Co-Axial Master Chronometer Calibre 8800, this model is built around the brand’s long-standing dive-watch heritage.
Its combination of polished and functional details gives the watch a versatile character, while the wave-pattern blue dial, luminous hands and markers, and unidirectional diving bezel create the unmistakable Seamaster Diver 300M appearance.
Signature 42mm Stainless Steel Case
The Omega Seamaster 210.30.42.20.03.001 uses a 42mm stainless steel case with a 13.56mm thickness and 20mm lug spacing. The case architecture combines brushed and polished surfaces, giving the watch visual contrast while maintaining its sporty profile.
A screw-in crown and helium escape valve further reinforce the technical character associated with the Seamaster Diver 300M collection.
Blue Ceramic Dial and Bezel
The rich blue dial is one of the defining elements of this Seamaster. Its wave-pattern design adds texture while retaining the clean layout expected from a professional-inspired dive watch.
The matching blue ceramic unidirectional bezel incorporates a diving scale, providing an important functional element while creating a cohesive blue-on-blue appearance.
The dial is protected by a domed, scratch-resistant sapphire crystal with anti-reflective treatment on both sides.
OMEGA Calibre 8800
Powering the Omega 210.30.42.20.03.001 is the automatic OMEGA Calibre 8800. The movement uses a Co-Axial escapement and carries Master Chronometer certification, with testing for resistance to magnetic fields reaching 15,000 gauss.
The movement provides approximately 55 hours of power reserve, combining automatic winding with modern mechanical technology.
The transparent caseback provides a view of the movement, adding another dimension to the watch’s mechanical appeal.
Seamaster Diver 300M Functionality
The model is rated to 300 metres / 1,000 feet of water resistance, making water resistance a central part of its technical specification. Its feature set includes a screw-in crown, helium escape valve, unidirectional rotating bezel, date display, and anti-magnetic construction.
The date window is positioned at 6 o’clock, maintaining a balanced dial layout while adding everyday practicality.
Stainless Steel Bracelet
The watch is supplied with a stainless steel bracelet featuring a folding clasp designed for the Seamaster Diver 300M. The bracelet uses a 20mm connection at the case and complements the stainless steel construction throughout the watch.
The combination of steel and blue ceramic gives the timepiece a polished yet sporty appearance that works naturally within the modern Seamaster collection.
A Modern Seamaster Classic
The Omega 210.30.42.20.03.001 Blue Seamaster 42mm 2020 represents the modern interpretation of OMEGA’s established Diver 300M formula. Its 42mm steel case, blue ceramic components, wave-pattern dial, Master Chronometer movement, and 300-metre water resistance create a specification centered on both performance and recognizable design.
For enthusiasts interested in contemporary OMEGA watches, this reference offers a distinctive combination of mechanical engineering and the visual identity that has become closely associated with the Seamaster Diver 300M.
Key Features & Benefits
- Brand: OMEGA
- Reference: 210.30.42.20.03.001
- Collection: Seamaster Diver 300M
- Year: 2020
- Case Diameter: 42mm
- Case Material: Stainless steel
- Dial: Blue ceramic with wave pattern
- Bezel: Blue ceramic, unidirectional rotating
- Movement: OMEGA Co-Axial Master Chronometer Calibre 8800
- Movement Type: Automatic
- Power Reserve: Approximately 55 hours
- Water Resistance: 300 metres / 1,000 feet
- Crystal: Domed scratch-resistant sapphire with anti-reflective treatment
- Bracelet: Stainless steel
- Functions: Hours, minutes, seconds, date
- Additional Features: Helium escape valve, screw-in crown, transparent caseback, anti-magnetic construction
- Lug Width: 20mm
Why the Omega 210.30.42.20.03.001 Stands Out
The Omega 210.30.42.20.03.001 Blue Seamaster 42mm 2020 combines a recognizable dive-watch silhouette with OMEGA’s contemporary mechanical technology. The blue ceramic dial and bezel provide the watch with its signature visual character, while the Calibre 8800 adds modern Co-Axial Master Chronometer performance.
Its 42mm case and stainless steel bracelet give it a substantial wrist presence, while the carefully balanced dial layout keeps the overall design unmistakably Seamaster.
Product Specifications
| Specification | Details |
|---|---|
| Brand | OMEGA |
| Reference | 210.30.42.20.03.001 |
| Collection | Seamaster Diver 300M |
| Year | 2020 |
| Case Size | 42mm |
| Case Thickness | 13.56mm |
| Case Material | Stainless steel |
| Dial Color | Blue |
| Bezel | Blue ceramic, unidirectional |
| Movement | OMEGA Calibre 8800 |
| Movement Type | Automatic |
| Certification | Master Chronometer |
| Power Reserve | 55 hours |
| Water Resistance | 300m / 1,000ft |
| Crystal | Sapphire |
| Bracelet | Stainless steel |
| Lug Width | 20mm |
| Date | Yes |
| Caseback | Transparent |
Please verify the individual watch’s serial number, production date, condition, movement, bracelet, accessories, service history, and documentation before purchase. Specifications may vary for individual examples, particularly where replacement or service components have been fitted.






















