Omega Seamaster 300 Seamaster 300 Co-Axial Master Chronometer Platinum / Malachite

Reference 234.93.41.21.99.001

About this watch

The Omega Seamaster 300 Co-Axial Master Chronometer Platinum / Malachite is a stunning example of luxury watchmaking, blending elegance with functionality. This timepiece showcases the brand's craftsmanship and attention to detail, making it a standout in the Seamaster family. The platinum case and malachite dial add a touch of sophistication, while the automatic movement ensures precision and reliability. With its 60-hour power reserve and water resistance of 300 meters, this watch is perfect for diving enthusiasts or those who appreciate luxury and functionality. Whether you're at the office or out on the town, the Omega Seamaster 300 Co-Axial Master Chronometer Platinum / Malachite is a versatile timepiece that exudes style and substance.
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Key Features

  • Platinum case with malachite dial
  • Automatic Omega caliber 8913 movement
  • 60-hour power reserve
  • Water resistance of 300 meters
  • Sapphire crystal for scratch protection
  • Sturdy platinum bracelet
  • Easy-adjust clasp

Specifications

Brand
Omega
Family
Seamaster 300
Model
Seamaster 300 Co-Axial Master Chronometer Platinum / Malachite
Reference
234.93.41.21.99.001
Movement
8913
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
41mm
Dial Color
Green
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Omega Seamaster 300m Full set, w/ Bracelet and Rubber. CHEAP!

Omega Seamaster 300m Full set, w/ Bracelet and Rubber. CHEAP!

Omega - Seamaster 300m · $3,950
This Omega Seamaster 300m is a well-loved watch with excellent timekeeping, still under warranty for about 6 months. It comes with the full set, including box, cards, links, and an additional rubber strap.

  • Condition: Pre-owned with scratches on bracelet and case
  • Warranty Left: 6 months
  • Shipping Options: Fedex Hold at Location, meet in person, or video chat for payment
  • Payment Methods: Cash, Paypal G&S(+4.5%), Zelle(preferred), Bitcoin(+2.5%), USDT
Posted at
May 21, 2026, 5:00 PM
Active
[WTS] Omega Seamaster 300 SMP $3,995

Omega Seamaster 300 SMP $3,995

Omega - Seamaster 300 SMP · $3,995
Up for grabs is a Grey dial Omega Seamaster from Year: 2022 with a Size: 42mm diameter. Includes various accessories such as a Wooden omega box, card sleeve, all cards, omega book, zuludiver strap, forstner bracelet with the micro adjust, end links and pins.

  • Condition: Worn but in really good and well taken care of
  • Year: 2022
  • Size: 42mm diameter
  • Box: Wooden omega box
Posted at
May 21, 2026, 4:12 PM
Active
[WTS] Omega Seamaster 300M Black Aluminum 42mm 210.30.42.20.01.010 ( new / 2026 / box and papers )

Omega Seamaster 300M Black Aluminum 42mm 210.30.42.20.01.010 ( new / 2026 / box and papers )

A brand new Omega Seamaster 300M with a stainless steel case and black aluminum dial, complete with all boxes and papers.

  • Condition: Brand new
  • Case material: Stainless steel
  • Movement: 8806 Master Co-Axial
Posted at
May 21, 2026, 12:19 PM
Active
[WTS] Omega Seamaster 300 Green Diver 210.32.42.20.10.001 ( new / 2026 / box and papers )

Omega Seamaster 300 Green Diver 210.32.42.20.10.001 ( new / 2026 / box and papers )

A brand new Omega Seamaster 300 Green Diver on a rubber strap, with all original boxes and papers.

  • Condition: New
  • Case size: 42mm diameter
  • Movement: 8800 Master Co-Axial
Posted at
May 21, 2026, 12:13 PM
Active
[WTS] Omega Seamaster 300 Heritage 234.30.41.21.01.001 Full Set (2022) – Very Good Condition

Omega Seamaster 300 Heritage 234.30.41.21.01.001 Full Set (2022) – Very Good Condition

This Omega Seamaster 300 Heritage features a classic vintage-inspired design, black dial, and in-house Co-Axial Master Chronometer movement.

  • Condition: Very good condition
  • Movement: in-house Co-Axial Master Chronometer
  • Bracelet condition: some cosmetic wear consistent with normal use
Posted at
May 20, 2026, 11:31 PM
Active
[WTS] Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,250 - US BASED!

Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,250 - US BASED!

Omega - 2222.80 · $2,250
A good Omega Seamaster 300M Co-Axial Mid-size watch with an automatic co-axial cal 2500 movement and a 36mm steel case on original Omega steel bracelet.

  • Condition: 8.8/10 - great condition with minimal marks/hairlines on the case, caseback, and bracelet
  • Case size: 36mm diameter
  • Bracelet length: fits up to 7-7.25 inch wrists
  • Movement: automatic co-axial cal 2500
Posted at
May 20, 2026, 9:39 PM
Active
[WTS] Omega Seamaster 300m w/ Bracelet & Rubber (full set)

Omega Seamaster 300m w/ Bracelet & Rubber (full set)

Omega - Seamaster 300m · $3,999
A 2021 Omega Seamaster 300m with a well-loved appearance, running excellently and keeping near perfect time. It still has about 6 months left on warranty.

  • Condition: Used with scratching on bracelet and case
  • Water Resistance: 300m
  • Warranty Left: 6 months
  • Box And Papers: Yes
Posted at
May 20, 2026, 7:14 PM
Active
[WTS] Omega Seamaster 300 2531.80 w/extra straps and bracelets

Omega Seamaster 300 2531.80 w/extra straps and bracelets

Omega - 2531.80 · $2,900
A Omega Seamaster 300 ref. 2531.80, a well-maintained watch from 2007, recently serviced by an authorized Omega service center.

  • Condition: Great condition with slight marks throughout
  • Bracelets: OEM bracelet (full links) and Forstner Presidential bracelet
  • Straps: Zealande rubber strap and Artem Classic blue sailcloth with white stitching
Posted at
May 19, 2026, 9:26 PM
Active
[WTS] Omega Seamaster 300M Blue 42MM - Ref 210.30.42.20.03.001 (NEW • UNWORN 5/2026 COMPLETE SET)

Omega Seamaster 300M Blue 42MM - Ref 210.30.42.20.03.001 (NEW • UNWORN 5/2026 COMPLETE SET)

This Omega Seamaster 300M Blue is a 42MM watch with various accessories included in the sale.

  • Condition: New, unworn
  • Dimensions: 42MM diameter
  • Case contents: outer sleeve, outer box, inner box, cards, instruction manual, UPC stickers, AD shipping coffin, travel case
Posted at
May 19, 2026, 7:07 PM
Active