Omega Seamaster 300 Seamaster 300 Master Chronometer Stainless Steel / Black / Bracelet

Reference 234.30.41.21.01.001

Omega Seamaster 300 Master Chronometer Stainless Steel / Black / Bracelet

About this watch

The Omega Seamaster 300 Master Chronometer is a luxurious timepiece that embodies the spirit of adventure while delivering peak performance. Its stunning black dial, mixed indexes, and arrow-shaped hands create a sophisticated look that's perfect for formal or casual settings. The sapphire crystal glass provides excellent clarity, and the open case back showcases Omega's craftsmanship. This watch is built to withstand diving conditions with its robust stainless steel bracelet and 300-meter water resistance. At its core beats the Omega caliber 8912, an automatic movement featuring a Co-Axial escapement that minimizes friction, enhancing precision and reliability. The Seamaster 300 Master Chronometer is a certified chronometer that promises reliability, making it a worthy companion for years to come.

Buy Now on Jomashop

This is an affiliate link

MSRP: $7,100

Market Price: $4,115

Key Features

41mm Round Case
Stainless Steel Bracelet with 21mm Lug Width
Sapphire Crystal Glass
Omega Caliber 8912 Automatic Movement
Co-Axial Escapement and METAS Certification
300-Meter Water Resistance

Specifications

Brand

Omega

Family

Seamaster 300

Model

Seamaster 300 Master Chronometer Stainless Steel / Black / Bracelet

Reference

234.30.41.21.01.001

Movement

8912

Movement Features

Hours, Minutes, Seconds
Chronometer, Co-Axial Escapement

Case

41mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Omega Seamaster 300 Heritage ; Tudor Black Bay Bronze 43mm ; Seiko Prospex SSC927 ; Seiko Prospex SPB485

Omega - Seamaster 300 Heritage · $4,750

Condition: Like new condition, no visible scratches or blemishes
Box: includes original box
Papers: includes original purchase receipt and papers
Bracelet: comes with OEM bracelet with all links in the box

Posted at

May 6, 2026, 1:35 PM

Active

View listing on r/WatchExchange

Omega Seamaster 300M Black Aluminum / Orange 210.30.42.20.01.018 ( new / 2025 / box and papers )

Omega - 210.30.42.20.01.018 · $6,200

A brand new Omega Seamaster 300 with a 42mm stainless steel case, black aluminum dial and bezel with orange accents on a mesh bracelet.

Condition: Brand new
Case size: 42mm diameter
Movement: 8806 Master Co-Axial Movement

Posted at

May 5, 2026, 11:21 AM

Active

View listing on r/WatchExchange

Omega Seamaster 300M Black / Orange Diver 210.32.42.20.01.006 ( new / 2025 / box and papers )

Omega - 210.32.42.20.01.006 · $5,995

This Omega Seamaster 300 is a brand new 42mm stainless steel diver's watch with a black and orange dial, featuring an 8806 Master Co-Axial movement.

Condition: Brand new
Case size: 42mm diameter
Movement: Master Co-Axial Movement (8806)
Material: stainless steel

Posted at

May 5, 2026, 11:14 AM

Active

View listing on r/WatchExchange

OMEGA Seamaster 300M Professional No-Date 🔥Excellent 2025 Full Kit

OMEGA - 210.32.42.20.01.003 · $5,199

This Omega Seamaster 300M Professional No-Date is a new model that was launched last year, featuring a 42mm case and 300m water resistance.

Condition: Excellent
Case size: 42mm diameter
Water resistance: 300m

Posted at

May 3, 2026, 10:16 PM

Active

View listing on r/WatchExchange

Uncle Seiko US1450 Bracelet (Omega Seamaster 300m)

· $85

This Uncle Seiko US1450 Bracelet for SMP 300 has a double button milled clasp and comes with all links, currently sized for a 17.5 cm wrist.

Material: Bracelet material not specified
Wrist size compatibility: 17.5 cm
Lug width: 20mm

Posted at

May 2, 2026, 6:43 PM

Active

View listing on r/WatchExchange

Omega Seamaster 300m James Bond 60th Anniversary 210.30.42.20.03.002 Full Kit, 2025 $7300+ 🏷️

Omega - 210.30.42.20.03.002 · $7,300

This Omega Seamaster 300m is a quintessential Bond Watch celebrating its 60th anniversary, featuring modern specifications and cool design elements.

Condition: Basically mint with a small scratch on the clasp
Water Resistance: 300m
Power Reserve: 55 hours

Posted at

May 1, 2026, 9:22 PM

Active

View listing on r/WatchExchange

Omega Seamaster 300M - ETNZ Special Edition - PRICED TO SELL! - $4,850 Shipped

Omega - 300M - ETNZ Special Edition · $4,850

A Omega Seamaster 300M in the ETNZ Special Edition.

Link: https://drive.google.com/file/d/1U4KeBBaVXhmzF2vIC_wezRddMbe586kK/view?usp=drivesdk

Posted at

May 1, 2026, 6:19 PM

Active

View listing on r/WatchExchange

2024 Omega Seamaster 300 Summer blue 41mm 234.30.41.21.02.002 Full Set Excellent

Omega - 234.30.41.21.03.002 · $5,997

Part of Omega’s 75th Anniversary Summer Blue Collection, this watch features a vintage-inspired architecture with a unique varnished dial and deeper tone bezel.

Condition: Excellent
Case Diameter: 41mm
Collection: Summer Blue

Posted at

May 1, 2026, 2:50 PM

Active

View listing on r/WatchExchange

1970 Omega Seamaster 300 🔥 Rare This Complete 🔥 Must See Ref. 165.024

Omega - 165.024 · $7,000

A 1970 Omega Seamaster 300 with a rare pencil hand design, in excellent condition considering its age. The watch is beyond complete and comes with original purchase receipt, boxes, bracelet, and all paperwork.

Condition: Honest, unpolished, worn
Bracelet Width: 8"
Crystal Condition: marks
Crown Condition: decay

Posted at

May 1, 2026, 7:15 AM

Active

View listing on r/WatchExchange