Case #760 — Omega Seamaster Professional 42MM Diver Ref. 210.30.42.20.01.001

Case #760 — Omega Seamaster Diver 300M 42 mm "Black Wave"

Ref. 210.30.42.20.01.001

Status: Available

Condition: Excellent Pre-Owned

Scope: Box, Papers, and Cards

Year: 2024

🔎 Case Notes

Some watches earn their place through scarcity. This one earns it through completeness of engineering. The Seamaster Diver 300M in steel on steel, black ceramic bezel and black ceramic dial, is the reference most people picture when they picture a modern Omega diver — and the detail work is better than its familiarity suggests. The 42 mm stainless steel case carries a black ceramic bezel with a white enamel diving scale, and the dial is polished black ceramic with laser-engraved waves and a date window at 6 o'clock. In daylight it reads as a flat, deep black; angle it and the wave pattern surfaces like water moving under glass.

Inside is the OMEGA Master Chronometer Calibre 8800, visible through the sapphire crystal on the wave-edged caseback, a self-winding movement with Co-Axial escapement, certified Master Chronometer and approved by METAS, resistant to magnetic fields reaching 15,000 gauss. Power reserve is 55 hours, water resistance 30 bar — 300 metres / 1000 feet.

This example is a 2024 watch presented in Excellent Pre-Owned condition, with no specific flaws recorded at inspection. It arrives as Box, Papers, and Cards, and the bracelet is currently sized to fit an approximately 7¾-inch wrist. As a dated 2024 piece, it should remain within Omega's five-year factory warranty period, subject to the exact warranty-card activation date and Omega's warranty terms.

🕰️ The Evidence

• Reference: 210.30.42.20.01.001
• Model / Collection: Omega Seamaster Diver 300M, Co-Axial Master Chronometer 42 mm
• Year: 2024
• Case: Stainless steel, brushed and polished
• Case Diameter: 42 mm
• Thickness: 13.56 mm
• Lug-to-Lug: Approximately 49.9 mm
• Lug Width: 20 mm
• Dial: Polished black ceramic with laser-engraved waves; date window at 6 o'clock
• Hands / Indexes: Rhodium-plated skeleton hands and raised indexes filled with white Super-LumiNova
• Crystal: Domed scratch-resistant sapphire with anti-reflective treatment on both sides
• Bezel: Unidirectional rotating, black ceramic with white enamel diving scale
• Crown: Screw-in
• Helium Escape Valve: Conical design
• Caseback: Wave-edged with sapphire crystal
• Movement: Omega Calibre 8800, self-winding with Co-Axial escapement
• Certification: Master Chronometer, approved by METAS; free sprung-balance with silicon balance spring
• Power Reserve: 55 hours
• Functions: Hours, minutes, seconds, date
• Water Resistance: 300 metres / 1000 feet
• Bracelet: Stainless steel Seamaster bracelet
• Clasp: Folding clasp with diver extension
• Bracelet Fit: Approximately 7¾-inch wrist
• Condition: Excellent Pre-Owned — no specific flaws recorded at inspection
• Factory Warranty: Dated 2024 warranty card; should remain within Omega's five-year factory warranty period, subject to activation date and Omega warranty terms
• Included: Box, Papers, and Cards

🌟 Collector Provenance

The Diver 300M line that this watch belongs to is the 2018 redesign, and that year matters. The 2018 generation reinstated several elements of the 1993 original — the wave-pattern dial and skeleton hands — while adding ceramic for the unidirectional dive-scale bezel, an enlarged 42 mm case, and, most significantly, Omega's in-house Master Chronometer Co-Axial Calibre 8800. Earlier Seamaster Professional generations ran smaller cases and, for much of their history, modified ETA-based or earlier Co-Axial calibres. The 2018 reference is where the model became fully Omega from the escapement outward.

The ceramic dial is the quiet technical headline. Rather than a printed or stamped wave motif, Omega laser-ablates the pattern into a polished zirconium-oxide surface. The result holds its gloss permanently and gives the dial a depth that photographs poorly and wears beautifully — one of those details that explains why owners describe the watch differently after living with it.

Within the 42 mm family, the black dial on steel bracelet is the anchor configuration. It is not the scarce one; it is the definitive one. Collectors who try the blue, grey, green or summer-blue variants frequently circle back to black because it is the version that most directly descends from the 1993 Seamaster Professional silhouette.

🌟 Historical Provenance

The Seamaster Professional Diver 300M has enjoyed a sustained following since 1993, and the modern collection deliberately carries that ocean heritage forward with Omega's current innovation and design. The original was built as a genuine saturation-capable diver — hence the helium escape valve at 10 o'clock, retained here in its conical form rather than deleted for cleanliness.

The model family is also inseparable from its screen history: the Seamaster Diver 300M became James Bond's watch in the mid-1990s and has remained associated with the character across decades of films. That connection belongs to the line, not to this reference. Dedicated Bond editions are separate references carrying their own dial, caseback and seconds-hand markings — the 007 logo on the seconds-hand counterbalance and caseback, for example, identifies the Casino Royale 50th Anniversary piece as ref. 212.30.41.20.01.001. This is the standard production Diver 300M, and it is described as such.

🧾 From the Case File

Practically, this is one of the few sub-$10,000 steel divers that genuinely does everything. The Calibre 8800 is METAS Master Chronometer certified, tested to 0/+5 seconds per day across eight separate tests — a standard that covers the movement cased up and in magnetic conditions, not only on a timing machine. For an owner, that translates to a watch that can sit beside a laptop, a tablet case or a magnetic clasp without consequence.

Sizing is the thing to understand before committing. At 13.56 mm thick with 300 metres of water resistance, and a lug-to-lug of 49.9 mm that stays just under the 50 mm mark, the proportions are well judged for the capability on offer. The bracelet is substantial, and notably does not taper from its 20 mm lug width — part of why the watch has presence disproportionate to its diameter. Currently sized to an approximately 7¾-inch wrist, it sits squarely in the range where this case wears at its best. The clasp includes a diver extension, which also makes it straightforward to wear over a cuff or wetsuit sleeve.

Against buying new, the arithmetic is simple. This is a 2024 example in Excellent Pre-Owned condition with its box, papers and cards intact, and a warranty card dated recently enough that factory coverage should still apply. The Super-LumiNova-filled skeleton hands and raised indexes give the dial legibility that holds up in low light, and the sapphire caseback means the 8800 remains something you can actually look at rather than simply read about.

Buy with Confidence

BST guarantees the authenticity of every watch we sell and provides a 30-day mechanical performance guarantee under normal use.

Accuracy may vary with age and service history, and water resistance is not guaranteed unless specifically stated and pressure-tested.

🗝️ BST Verdict

The definitive configuration of Omega's most important modern diver: black ceramic dial, black ceramic bezel, steel on steel, and the METAS-certified Calibre 8800 under a sapphire caseback.

A recent 2024 example, complete with Box, Papers, and Cards, presenting in Excellent Pre-Owned condition and still within the window of Omega's factory warranty period. For a buyer who wants one serious dive watch rather than several, the case for this one is largely self-evident.

👉 Every case deserves a closer look.