Case #374 — Omega Seamaster Diver 300M Blue on Steel Ref. 210.30.42.20.03.001

Case #374 — Omega Seamaster Diver 300M Blue on Steel Ref. 210.30.42.20.03.001

Status: Active Investigation
Condition: Excellent Pre-Owned
Scope: Box, Papers, and Cards
Year: 2021

🔎 Case Notes

The Omega Seamaster Diver 300M Ref. 210.30.42.20.03.001 is one of the strongest modern expressions of the Seamaster line — a watch that combines real dive-watch capability with a polished, highly recognizable design. In blue on steel, it delivers the full modern Seamaster look: wave-pattern ceramic dial, matching blue ceramic bezel, helium escape valve, and a bracelet configuration that gives it a substantial, everyday-sport feel. The reference is a 42mm stainless steel Diver 300M with sapphire crystal, display back, and Omega’s calibre 8800 automatic movement.

What makes this reference especially appealing is its balance. It still feels every bit like a proper modern diver, with 300 meters of water resistance and strong case architecture, but it also wears as one of Omega’s most versatile contemporary sports watches. The blue-on-steel execution is the classic modern look for this generation, and it remains one of the most recognizable configurations in the line.

This example dates to 2021 and is presented in excellent pre-owned condition. Overall, it shows only light wear consistent with careful use. It includes box, papers, and cards and is currently sized to fit approximately a 7.5-inch wrist.

🕰️ The Evidence

Reference: 210.30.42.20.03.001
Model: Omega Seamaster Diver 300M Blue on Steel
Case: Stainless Steel
Case Size: 42 mm
Bezel: Blue Ceramic Dive Bezel
Crystal: Sapphire Crystal
Dial: Blue Ceramic Wave Dial
Movement: Omega Co-Axial Master Chronometer Calibre 8800 Automatic
Bracelet: Stainless Steel Bracelet
Bracelet Fit: Approximately 7.5" wrist
Water Resistance: 300 m
Year: 2021
Accessories: Box, Papers, and Cards

Condition Notes: Excellent pre-owned condition overall, with light wear consistent with careful use.

🌊 Diving Heritage

The modern Diver 300M builds on one of Omega’s most recognizable sports-watch platforms, carrying forward the design language that has defined the collection for decades while updating it with contemporary materials and movement technology. In this generation, the use of ceramic for both the dial and bezel gives the watch a sharper, more technical feel, while the overall profile remains unmistakably Seamaster.

That matters because the watch does not feel limited to one role. It still has the stance and specification of a true dive watch, but it is refined enough to work well as an all-around daily sports watch. In blue on bracelet, it lands in the most familiar and broadly appealing version of the current formula.

🌟 Collector Provenance

The appeal here is rooted in recognizability, versatility, and modern Omega movement quality. This reference sits at the center of the current Diver 300M family, and the blue bracelet configuration remains one of the strongest and most sought-after expressions of the model. It has the kind of broad, enduring appeal that works for both first-time luxury buyers and established collectors.

Examples that include box, papers, and cards remain the strongest overall presentation, and a 2021 example in excellent pre-owned condition sits in a very attractive lane for a buyer looking for a modern Omega diver with proven everyday wearability.

🌟 Celebrity Provenance

The Seamaster family has long held a prominent place in modern watch culture, and the Diver 300M remains one of the brand’s most visible and recognizable sports-watch lines. Its appeal comes from the combination of technical credibility, familiar design, and the ability to feel sporty without becoming overly aggressive.

🧾 From the Case File

“Recovered as a 2021 Omega Seamaster Diver 300M Blue on Steel Ref. 210.30.42.20.03.001. Box, papers, and cards. Excellent pre-owned condition overall. Sized to approximately a 7.5-inch wrist.”

🗝️ BST Verdict

Case #374 delivers one of Omega’s most recognizable modern sports-watch references in its signature blue-on-steel form. With its 42mm case, full set presentation, strong bracelet fit, and excellent overall condition, this is a very attractive example of the Seamaster Diver 300M.

👉 Every case deserves a closer look.