Launched in its current form in 2018 and continuously refined since, the Seamaster Diver 300M represents Omega’s enduring commitment to innovation in dive watches. This particular configuration, featuring a crisp white ceramic dial with engraved wave motif, was first introduced in 2019 and remains one of the most in-demand modern Seamasters in production today.

The 42mm case is crafted from stainless steel and finished with a mix of brushed and polished surfaces, providing visual dimension and wrist presence without excess weight. The black ceramic unidirectional bezel is filled with white enamel, ensuring long-lasting legibility and resistance to wear. The screw-down crown and manually operated helium escape valve at 10 o’clock maintain the watch’s professional dive rating of 300 meters (1000 feet).

Beneath the sapphire crystal, the dial’s white ceramic surface offers a stark, contemporary contrast against the black bezel, with laser-engraved waves adding texture. Bold hour markers are filled with blue-glowing Super-LumiNova, while the polished hands — including the distinctive skeletonized minute and sword-style hour hand — provide precision at a glance.

Powering the watch is Omega’s Caliber 8800 — an in-house Co-Axial Master Chronometer movement that’s METAS-certified for resistance to magnetic fields up to 15,000 gauss and chronometer-level accuracy. It features a free-sprung balance with silicon balance spring, rhodium plating, Geneva waves in arabesque, and a 55-hour power reserve. The movement is visible through the exhibition caseback.

Completing the package is a high-quality black rubber strap with structured patterning and a stainless steel tang buckle — delivering both comfort and style in wet and dry environments alike.\

Condition Report ( Graded 9/10 )

Case:
Excellent condition with only faint hairline scratches on the polished case sides, visible under direct lighting. No dings or deep marks. Brushed surfaces retain sharp factory finish. Lugs are crisp and unpolished.

Bezel:
The polished black ceramic bezel insert is in pristine condition, free of chips or scratches. The white enamel numerals remain vibrant and fully intact. Bezel rotation is smooth with precise 120-click action and no play.

Crystal:
Front sapphire crystal is flawless — no scratches, chips, or coating blemishes. Anti-reflective layer performs well in direct light.

Caseback:
Exhibition sapphire caseback is clean and unmarred. The surrounding steel ring shows minimal wear. Laser engraving remains crisp and legible.

Crown and Helium Valve:
Screw-down crown operates smoothly and threads tightly. The manually operated helium escape valve at 10 o’clock shows no wear and functions properly.

Dial & Hands:
Dial is perfect — no marks, fading, or discoloration. Super-LumiNova on markers and hands glows brightly and evenly. Date window is crisp with well-aligned numerals.

Strap & Buckle:
Original Omega black rubber strap in excellent condition with full length (untrimmed). Very slight creasing near the first hole, consistent with light wear. No cracking or discoloration. Stainless steel tang buckle is near mint with only light micro-abrasions.

Functionality:
Movement winds smoothly and runs within Omega's Master Chronometer specs (+0 to +5 seconds/day). All functions — time-setting, date, bezel, and helium valve — operate as intended.

What’s Included

• Omega Seamaster Diver 300M (Ref. 210.32.42.20.04.001 – 2025 Production)

• Original Omega inner and outer presentation boxes

• Master Chronometer certification card (dated 2025)

• International warranty card

• Pictogram card

• Instruction manual

• Omega hang tag

• Full factory rubber strap with stainless steel buckle

  
  

  Collector’s Notes

  Among Omega’s modern dive watches, the white dial Seamaster Diver 300M stands apart for its bold aesthetic and exceptional performance. The ceramic dial and bezel combination offers unrivaled scratch resistance and clarity, while the METAS-certified Caliber 8800 rivals movements from brands costing significantly more. A true “do-it-all” luxury sport watch, this reference is backed by over 25 years of Seamaster history and innovation — and remains one of the few dive watches to combine such technology with expressive design. This 2025 example represents the most current execution and remains a top-tier value in the professional dive watch category.