Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 'Green Seaweed' Ref. 210.30.42.20.10.001
Professional Dive Watch · Omega (The Swatch Group). High-tier luxury brand known for precision, Olympic timing history, and the James Bond partnership.
Period: Modern Luxury (2018-present). This model specifically debuted in 2022 as part of the color-expansion series for the 'Seamaster 300' collection.
Type
Professional Dive Watch
Brand
Omega (The Swatch Group). High-tier luxury brand known for precision, Olympic timing history, and the James Bond partnership.
Movement
Automatic, Omega Calibre 8800. Features a METAS-certified Master Chronometer rating, Silicon balance spring, 55-hour power reserve, and 25,200 vph frequency.
Dimensions
42mm Diameter, 13.6mm Thickness, 50mm Lug-to-lug, 20mm Lug width. Wears slightly bulky due to the protruding Helium Escape Valve.
Description
A staple of the Omega catalog, this Seamaster Diver 300M combines 1990s heritage with modern materials. The deep green ceramic dial and bezel offer a moody, sophisticated alternative to the classic blue. It is a highly capable tool watch that transitions effortlessly to executive wear.
Key Features
Laser-engraved wave dial, ceramic bezel insert, conical HEV at 10 o'clock, METAS certification (resistant to magnets up to 15,000 gauss), and the 6 o'clock date position.
Dial Description
Olive green polished ceramic (ZrO2) with laser-ablated wave pattern. Applied round and rectangular indices filled with Super-LumiNova. Skeletonized 'broadsword' hands with a date window at 6 o'clock.
Case Material
316L Stainless Steel with a mix of brushed and polished finishes. Features include twisted 'lyre' lugs and a scalloped bezel design.
Crystal Type
Domed, scratch-resistant sapphire crystal with anti-reflective treatment on both sides. Shown in new condition with protective plastic.
Bezel Details
Unidirectional rotating bezel in stainless steel with a green polished ceramic insert. Features a white enamel diving scale for long-term legibility and durability.
Crown & Pushers
Screw-down main crown at 3 o'clock with Omega logo. Conical Helium Escape Valve (HEV) at 10 o'clock with a patented design that allows operation underwater.
Bracelet or Strap
Five-stripe 'tank tread' brushed stainless steel bracelet with polished detail links. Features a folding clasp with a push-button micro-adjustment system.
Caseback Details
Screw-in exhibition caseback with a sapphire window. Engraved with 'DIVER 300M' and waves, revealing the decorated Calibre 8800 with Geneva waves in arabesque.
Movement Type
Automatic, Omega Calibre 8800. Features a METAS-certified Master Chronometer rating, Silicon balance spring, 55-hour power reserve, and 25,200 vph frequency.
Water Resistance
300 Meters (1,000 Feet). Suitable for professional diving and vigorous water sports. Integrity should be tested annually if used for diving.
Origin & Provenance
Swiss Made. Manufactured in Biel/Bienne, Switzerland. Features an in-house movement with a Co-Axial escapement.
Age Estimate
Modern production (circa 2022-2024), identifiable by the specific green ceramic colorway launched in 2022.
Cultural Significance
Representing the pinnacle of the modern 'everyday luxury diver,' the Seamaster is often considered the primary rival to the Rolex Submariner, offering higher movement technology for a more accessible price.
Condition Notes
Mint/New condition. The watch appears to have factory protective plastic wrap on the case sides and bracelet, indicating it is likely unsold or recently purchased stock.
Value Estimate
MSRP approximately $5,900 USD. Secondary market prices currently range from $4,800 to $5,500 depending on box/paper completeness.
Care & Maintenance
Service interval of 5 to 8 years recommended by Omega. Rinse with fresh water after salt exposure. Ensure crown and HEV are fully screwed in before submersion.
Similar Watches
Rolex Submariner 126610LV (Starbucks/Kermit), Tudor Black Bay Harrods Edition, Breitling Superocean Heritage II, Oris Aquis Green.
Interesting Facts
The Seamaster 300M became a global icon after being selected as James Bond's watch in 'GoldenEye' (1995). Professional divers often use the HEV to release helium gas during decompression from saturation diving.