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Seamaster Diver 300M 42 mm, steel ‑ Sedna™ gold on steel ‑ Sedna™ gold

Name: Seamaster Diver 300M Omega Co-Axial Master Chronometer 42 mm - 210.20.42.20.01.001
Brand: Omega
Price: 99900 HKD
Availability: InStock

HKD99,900

Diver 300M

42 mm, steel ‑ Sedna™ gold on steel ‑ Sedna™ gold

HKD99,900

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Steel ‑ Sedna™ gold on Steel ‑ Sedna™ gold

42 mm, steel ‑ Sedna™ gold on steel ‑ Sedna™ gold

HKD99,900

Shop now Seamaster 42 mm, steel - Sedna™ gold on steel - Sedna™ gold - 21020422001001 Shop now
Steel ‑ Sedna™ gold on Rubber strap

42 mm, steel ‑ Sedna™ gold on rubber strap

HKD65,700

Shop now Seamaster 42 mm, steel - Sedna™ gold on rubber strap - 21022422001002 Shop now
Steel ‑ yellow gold on Steel ‑ yellow gold

42 mm, steel ‑ yellow gold on steel ‑ yellow gold

HKD99,900

Shop now Seamaster 42 mm, steel - yellow gold on steel - yellow gold - 21020422003001 Shop now
Steel ‑ yellow gold on Rubber strap

42 mm, steel ‑ yellow gold on rubber strap

HKD65,700

Shop now Seamaster 42 mm, steel - yellow gold on rubber strap - 21022422003001 Shop now
selected

Steel ‑ yellow gold on Steel ‑ yellow gold

42 mm, steel ‑ yellow gold on steel ‑ yellow gold

HKD99,900

Shop now Seamaster 42 mm, steel - yellow gold on steel - yellow gold - 21020422001002 Shop now
Steel ‑ yellow gold on Rubber strap

42 mm, steel ‑ yellow gold on rubber strap

HKD65,700

Shop now Seamaster 42 mm, steel - yellow gold on rubber strap - 21022422001001 Shop now

Free Hong Kong Delivery

• Delivered in 1 to 3 business days.
• A signature will be required on delivery for all orders.
• Our Hong Kong delivery service is operated by Ferrari Express.

Free Hong Kong Returns

• Within 30 days in original condition.
• Please Sign In to your MyOMEGA account and follow our Return Instructions.
• If you do not have an account, you can request and manage your return here.

For more information please see our Delivery & Returns Policy.

OMEGA pays attention to online security.

We take the privacy and security of your payment and personal details very seriously. We use SSL encryption technology for online transactions to protect your card information.

The following methods of payment are available: VISA, MASTERCARD, UNIONPAY, JCB, ALIPAY, ALIPAYHK AND PAYPAL.

OMEGA processes payments via Adyen.

All OMEGA watches are delivered with a 5-year warranty that covers the repair of any material or manufacturing defects. Please refer to the operating instructions for specific information about the warranty conditions and restrictions.

OMEGA is proud to include the Swiss Made mark on all of its watches. This simple wording guarantees a standard of quality established over many centuries and is a world-renowned symbol of excellence.

Since 1993, the Seamaster Professional Diver 300M has enjoyed a legendary following. Today’s modern collection has embraced that famous ocean heritage and updated it with OMEGA’s best innovation and design.

This 42 mm model is crafted from stainless steel and 18K Sedna™ gold, and includes a black ceramic bezel with a Ceragold™ diving scale. The dial is also polished black ceramic and features laser-engraved waves and a date window at 6 o’clock.

The skeleton hands and raised indexes are 18K Sedna™ gold and are filled with white Super-LumiNova, while the helium escape valve has been given a conical design.

The watch is presented on a stainless steel and 18K Sedna™ gold bracelet and is driven by the OMEGA Master Chronometer Calibre 8800, which can be seen through the sapphire-crystal on the wave-edged caseback.

Reference: 210.20.42.20.01.001
Between lugs Open Case Measurement Modal: 20 mm
Lug‑to‑lug Open Case Measurement Modal: 49.9 mm
Thickness Open Case Measurement Modal: 13.6 mm
Case diameter Open Case Measurement Modal: 42 mm
Case: Steel ‑ Sedna™ gold
Dial colour: Black
Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Water resistance: 30 bar (300 metres / 1000 feet)
Total product weight (approx.): 203 g
Calibre: Omega 8800
Movement Type: Self winding
Power reserve: 55 hours

Material: Steel ‑ Sedna™ gold
Type of Clasp: Foldover clasp with comfort setting and diver extension

Product sheet

Key materials

Sedna^TM Gold
Stainless Steel
Ceramic
Sapphire Crystal

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Sedna^TM Gold

OMEGA has been using the exclusive 18K Sedna^TM Gold, its own fiery rose gold alloy, since 2012. Named after Sedna, an orbiting planetoid that has been described as one of the reddest in the solar system, Sedna^TM Gold not only bears all the standard characteristics of other 18K golds, but it also offers high resistance to the fading of colour and lustre over time. Its unique composition includes copper and palladium for colour and stability.
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Stainless Steel

Stainless steel is certainly the most conventional of watchmaking materials for outer craftsmanship, and offers beauty, strength and affordability. OMEGA uses 316L stainless steel. Known for its corrosion-resistance and high lustre after polishing, this material is often the ideal choice for watches in both daily-use and high-stress situations such as diving and adventure.
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Ceramic

OMEGA has unrivalled expertise in the use of ceramics, dating back more than 10 years. Taking its origin from the Greek word "keramos", ceramic is an inorganic, non-metallic substance obtained by firing at high temperatures. It allows the creation of completely dense watch parts with exceptional mechanical properties. Ceramic is one of the most popular choices for customers when selecting their timepiece, thanks to its appealing colour range and specific properties, such as it being two times lighter than stainless steel, hardwearing, highly scratch-resistant, chemically inert, hypoallergenic, and non-magnetic.
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Sapphire Crystal

To really appreciate the finer details of a timepiece, OMEGA uses synthetic sapphire crystal with a highly scratch-resistant and anti-reflective treatment. Before the machining and finishing processes take place, the sapphire crystals are produced under the Verneuil process, also called flame fusion. It involves the melting of the raw substance using oxyhydrogen flame and the crystallisation of the melted droplets to form a cylinder. Graded 9 on the Mohs-hardness scale (graded 1-10), the resulting sapphire crystals are virtually scratch-proof and very hard, ensuring an unhindered vision at all times.

Sedna^TM Gold

OMEGA has been using the exclusive 18K Sedna^TM Gold, its own fiery rose gold alloy, since 2012. Named after Sedna, an orbiting planetoid that has been described as one of the reddest in the solar system, Sedna^TM Gold not only bears all the standard characteristics of other 18K golds, but it also offers high resistance to the fading of colour and lustre over time. Its unique composition includes copper and palladium for colour and stability.

Stainless Steel

Stainless steel is certainly the most conventional of watchmaking materials for outer craftsmanship, and offers beauty, strength and affordability. OMEGA uses 316L stainless steel. Known for its corrosion-resistance and high lustre after polishing, this material is often the ideal choice for watches in both daily-use and high-stress situations such as diving and adventure.

Ceramic

OMEGA has unrivalled expertise in the use of ceramics, dating back more than 10 years. Taking its origin from the Greek word "keramos", ceramic is an inorganic, non-metallic substance obtained by firing at high temperatures. It allows the creation of completely dense watch parts with exceptional mechanical properties. Ceramic is one of the most popular choices for customers when selecting their timepiece, thanks to its appealing colour range and specific properties, such as it being two times lighter than stainless steel, hardwearing, highly scratch-resistant, chemically inert, hypoallergenic, and non-magnetic.

Sapphire Crystal

To really appreciate the finer details of a timepiece, OMEGA uses synthetic sapphire crystal with a highly scratch-resistant and anti-reflective treatment. Before the machining and finishing processes take place, the sapphire crystals are produced under the Verneuil process, also called flame fusion. It involves the melting of the raw substance using oxyhydrogen flame and the crystallisation of the melted droplets to form a cylinder. Graded 9 on the Mohs-hardness scale (graded 1-10), the resulting sapphire crystals are virtually scratch-proof and very hard, ensuring an unhindered vision at all times.

A new look for your watch

Your watch and strap should go together perfectly, but that doesn't mean you can't experiment with different combinations. Why not mix things up and see what happens? You may discover a look that's as individual as you are.

The advantages
of this watch

Inside this timepiece are the revolutionary components that guarantee the highest standards of performance. From the Co-Axial escapement for long-lasting precision, to the silicon balance spring for superior anti-magnetism, OMEGA has conquered every challenge that matters.

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Master Chronometer Certified

Superior Precision

Twice as precise as any officially certified chronometer

Our Master Chronometer watches are tested and certified twice. First, the movement is Chronometer-certified according to international standard ISO3159, requiring a precision of -4/+6 second per day, following the tests at the Official Swiss Chronometer Control (COSC). Then, the watch head and its movement undergo eight Master Chronometer tests set by the Swiss Federal Institute of Metrology (METAS) with criteria of 0/+6 seconds per day.

Discover more about Master Chronometer
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Master Chronometer Certified

Anti-Magnetic

Proprietary anti-magnetic materials

Everyday items such as mobile phones, metal clasps on handbags, laptops, MRI, induction hobs or automatic doors; subject a watch to magnetic fields and can affect its performance. To prevent the risk of permanent deviations of up to several minutes a day we've conceived movements with antimagnetic materials, such as the silicon balance spring, capable of withstanding the highest fields.

Discover more about Master Chronometer
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Master Chronometer Certified

Water-resistance

To ensure the integrity of our timepieces at depth, not just some but all watches are fully immersed in water and pressure is applied up to the point of the guaranteed water resistance. By submerging each watch in water we have chosen – yet again - to exceed normal testing standards.

Discover more about Master Chronometer
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5-Year Warranty

In our quest to raise industry standards and push the boundaries of quality, all OMEGA watches are offered with a full 5-year warranty. This customer promise shows the confidence we have in the excellence of our timepieces, and provides extra trust and assurance when choosing your watch.
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Less servicing

Expect fewer visits to the service centre. The Co-Axial escapement is designed to reduce friction inside the movement. As a result, less lubrication is needed and hence less servicing. Compared to non-Co-Axial watches, the intervals between getting your watch serviced will be much longer.
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Shock-resistance

During the homologation process, OMEGA watches are tested to the extreme. This phase includes shock examinations, to confirm reliability and to check that its precision is maintained after a severe impact. All OMEGA timepieces are designed to withstand shocks corresponding to a 1-metre drop on a hard wooden floor. For a standard 150g timepiece, this sudden and rapid acceleration is an equivalent force of up to 5,000 G on the watch head.

Movement Calibre OMEGA 8800

Self-winding movement with Co-Axial escapement. Certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000 gauss. Free sprung-balance with silicon balance spring, automatic winding in both directions. Rhodium plated finish with Geneva waves in arabesque.