Zoom Media Gallery
The OMEGA Seamaster Diver 300M features a black and gold 18K Sedna™ gold bezel, black dial, date display, and a stainless steel bracelet with gold accents for a sophisticated look combined with Master Chronometer precision.
Wearing a black sweater and grey pants, a person has an OMEGA Seamaster Diver 300M with a black dial, metal band, and 18K Sedna™ gold accents on their left wrist, hand tucked in their pocket.
The OMEGA Seamaster Diver 300M wristwatch features a black dial, 18K Sedna™ gold and silver accents, three subdials, and a metal link bracelet, displayed against a white background.
An OMEGA Seamaster Diver 300M wristwatch in stainless steel and 18K Sedna™ gold is shown from the back, highlighting the Omega-logo clasp and a transparent case back that reveals the Master Chronometer movement.
Close-up of the OMEGA Seamaster Diver 300M’s back reveals its mechanical movement, rotor, and engravings like 300m/1000ft, Master Chronometer, and Co-Axial 9900 in luxurious 18K Sedna™ gold.
Close-up of the OMEGA Seamaster Diver 300M in 18K Sedna™ gold, highlighting its side profile, crown, and bracelet links against a white background.
A close-up of the OMEGA Seamaster Diver 300M shows its black and 18K Sedna™ gold bezel, chronograph subdials, and two-tone bracelet, highlighting its Master Chronometer precision.
Close-up of an OMEGA Seamaster Diver 300M wristwatch with a black and gold bezel, black dial, silver and 18K Sedna™ gold bracelet, and multiple subdials.
Image
Image
The OMEGA Seamaster Diver 300M features a black and gold 18K Sedna™ gold bezel, black dial, date display, and a stainless steel bracelet with gold accents for a sophisticated look combined with Master Chronometer precision.
Wearing a black sweater and grey pants, a person has an OMEGA Seamaster Diver 300M with a black dial, metal band, and 18K Sedna™ gold accents on their left wrist, hand tucked in their pocket.
The OMEGA Seamaster Diver 300M wristwatch features a black dial, 18K Sedna™ gold and silver accents, three subdials, and a metal link bracelet, displayed against a white background.
An OMEGA Seamaster Diver 300M wristwatch in stainless steel and 18K Sedna™ gold is shown from the back, highlighting the Omega-logo clasp and a transparent case back that reveals the Master Chronometer movement.
Close-up of the OMEGA Seamaster Diver 300M’s back reveals its mechanical movement, rotor, and engravings like 300m/1000ft, Master Chronometer, and Co-Axial 9900 in luxurious 18K Sedna™ gold.
Close-up of the OMEGA Seamaster Diver 300M in 18K Sedna™ gold, highlighting its side profile, crown, and bracelet links against a white background.
A close-up of the OMEGA Seamaster Diver 300M shows its black and 18K Sedna™ gold bezel, chronograph subdials, and two-tone bracelet, highlighting its Master Chronometer precision.
Close-up of an OMEGA Seamaster Diver 300M wristwatch with a black and gold bezel, black dial, silver and 18K Sedna™ gold bracelet, and multiple subdials.
Image
Image
The OMEGA Seamaster Diver 300M features a black and gold 18K Sedna™ gold bezel, black dial, date display, and a stainless steel bracelet with gold accents for a sophisticated look combined with Master Chronometer precision.
Wearing a black sweater and grey pants, a person has an OMEGA Seamaster Diver 300M with a black dial, metal band, and 18K Sedna™ gold accents on their left wrist, hand tucked in their pocket.
The OMEGA Seamaster Diver 300M wristwatch features a black dial, 18K Sedna™ gold and silver accents, three subdials, and a metal link bracelet, displayed against a white background.
An OMEGA Seamaster Diver 300M wristwatch in stainless steel and 18K Sedna™ gold is shown from the back, highlighting the Omega-logo clasp and a transparent case back that reveals the Master Chronometer movement.
Close-up of the OMEGA Seamaster Diver 300M’s back reveals its mechanical movement, rotor, and engravings like 300m/1000ft, Master Chronometer, and Co-Axial 9900 in luxurious 18K Sedna™ gold.
Close-up of the OMEGA Seamaster Diver 300M in 18K Sedna™ gold, highlighting its side profile, crown, and bracelet links against a white background.
A close-up of the OMEGA Seamaster Diver 300M shows its black and 18K Sedna™ gold bezel, chronograph subdials, and two-tone bracelet, highlighting its Master Chronometer precision.
Close-up of an OMEGA Seamaster Diver 300M wristwatch with a black and gold bezel, black dial, silver and 18K Sedna™ gold bracelet, and multiple subdials.
Image
Image
OMEGA

Seamaster Diver 300M 44mm, Two-Tone Steel & 18K Rose Gold, Ceramic & 18K Yellow Gold, Diamond Black Dial

O21020445101001 44 mm
View Specs
Regular price $18,600
Starting at    /mo or 0% APR with Affirm .

Sign up to be notified if this product becomes available.

Authorized Luxury Retailer
Rolex green flag outside the Watches of Switzerland store with cream columns and large windows.

Renowned for expertise in luxury watch retail, Watches of Switzerland embodies the highest standards of craftsmanship and service. With a history dating back to the 1700s, the company offers a curated selection of premier timepieces and commits to excellence in customer experience grounded in a legacy of trust and industry proficiency.

Authorized Luxury Retailer

Authorized Luxury Retailer

We are an authorized retailer for over 80 luxury watch brands.

Shop similar models

OMEGA Seamaster Diver 300M - (Ref. O21020445101001) Product Details

A tribute to Omega’s ocean heritage Master Chronometer certification from METAS A 44mm 18K Sedna™ gold case with a two-tone bracelet Polished black ceramic dial with laser engraved waves Powered by the 9900 calibre movement for impeccable precision.

OCEAN HERITAGE

Paying tribute to Omega’s ocean heritage, the Seamaster Planet Ocean collection features Master Chronometer certification, advanced designs and water resistance to 300 meters. Designed for use underwater, the Pro Diver collection includes co-axial escapement for long-lasting precision, a silicon balance spring for superior anti-magnetism, and a newly designed helium escape valve. A

DIVERS DREAM

This 44mm model features an 18K Sedna™ gold case presented on a two-tone bracelet with a foldover clasp. A polished black bezel with a diving scale frames the black ceramic dial, organized with 18K Sedna™ gold hands and white Super-LumiNova indexes. The 9900 calibre movement certified by METAS powers this Master Chronometer.

General

Condition

New

Brand

OMEGA

Reference

O21020445101001

Year

SPRING/SUMMER 2019

Family

Seamaster Diver 300m

Product Code

17331643

Power Reserve

60 Hours Approx

Watch Display

Analogue

Water Resistance

300 Metres

Features

Date display
Deployment clasp
Automatic movement
Waterproof

Case

Case Size

44 mm

Case Depth

17 mm

Case Shape

Round

Case Material

Steel & 18ct Rose Gold

Bezel Material

Ceramic

Bezel Color

Black

Crystal

Sapphire

Dial

Dial Color

Black

Dial Texture

Wave

Dial Markers

Dots

Stone Set

Yes

Movement

Type

Auto

Bracelet

In-house Movement

Yes

Type

Bracelet

Bracelet Material

Ceramic & 18ct Yellow Gold

Stone Set

No

Buckle/Clasp

Deployment

What People Are Saying

4.7 Average Star Rating

View More Reviews

Absolutely top notch service with

Absolutely top notch service with Watches of Switzerland. My watch was overnighted for free because it was over $300. On a Saturday, even! Impeccable.

CS

Christopher S.

Thank you very much

Thank you very much

WS

Wooin S.

Amazing service

Amazing service

DR

Devon R.

We needed to get this

We needed to get this in about 24 hours before he left for school. It arrived right on time.

LS

Linda S.

Great experience!

Great experience!

SM

Shabnam M.

Kevin Phillips was really helpful

Kevin Phillips was really helpful

RO

Rieko O.

Easy transaction

Easy transaction, fast shipping. . Literally got my item less than 24hrs from ordering.

MG

Mikee G.

Customer service was spectacular

Customer service was spectacular. They upgraded my shipping to overnight so that my son's birthday gift would make it to us in time. Super responsive...

AC

Amanda C.

102

Years of Service in Luxury Timepieces

2000+

Five Star Reviews

191

Showrooms Across the Globe

50+

Luxury Timepiece Brands

As Featured In

Hodinkee
A person in a suit adjusts their collar, wearing a silver luxury wristwatch with a black bezel.

Explore OMEGA

The OMEGA collection of watches epitomizes a blend of timeless elegance and cutting-edge innovation. From the legendary Speedmaster, the inaugural watch on the moon, to the iconic Seamaster, beloved by secret agents, each timepiece effortlessly integrates sophisticated design with unparalleled precision. Whether you're captivated by the vintage charm of the Constellation or the dynamic allure of the Planet Ocean, OMEGA presents a diverse array of watches, each narrating a distinctive tale of craftsmanship and style.

Explore OMEGA