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The Encyclopedia of Horology

Wristwatch · Diver's wristwatch

Omega Seamaster Diver 300M Ref. 210.60.42.20.99.001

Partially verified

The source reports this Omega Seamaster Diver 300M reference 210.60.42.20.99.001 dates to 2019 and features a 42 mm multi-metal construction combining Grade 2 titanium, tantalum, and Sedna gold. The grey dial displays laser-engraved wave patterning, luminous indices, and skeletonised hands. The rotating bezel features a textured gold-tone ring over a dark grey tantalum base, matching the tantalum and Sedna gold segments of the bracelet. According to the seller, the watch is powered by the self-winding calibre 8806 movement and comes with a titanium, tantalum, and Sedna gold folding clasp.

Dial and bezel of the Omega Seamaster Diver 300M in titanium, tantalum, and Sedna gold
Dial and bezel of the Omega Seamaster Diver 300M in titanium, tantalum, and Sedna gold — Phillips. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
perpetual.phillips.com
Category
Wristwatch · Diver's wristwatch
Maker / attribution
Omega
Reference
210.60.42.20.99.001
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
2019
Country
Switzerland

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Identity and Multi-Metal Construction

This diver's wristwatch is catalogued under reference 210.60.42.20.99.001 by Omega, with the listing recording a production year of 2019 and a 42 mm diameter. Its exterior utilizes a tri-metal composition combining Grade 2 titanium, tantalum, and Sedna gold across the case and linked bracelet.

The bezel structure visibly incorporates a darker base ring, reported as tantalum, beneath a gold-tone rotating bezel ring featuring raised numerals set against a textured ground. The bracelet similarly alternates grey, dark grey, and gold-tone elements leading to a reported titanium, tantalum, and Sedna gold folding clasp, while crowns appear at the 3 o'clock and 10 o'clock positions.

Evidence for this section
  • “pairing tantalum with Grade 2 titanium and their signature Sedna gold.”
  • “You'll spot the tantalum on the bezel base and center bracelet links, playing off the warm gold accents on the crown, bezel ring, and bracelet.”
  • “Clasp/Buckle Titanium ‑ Tantalum ‑ Sedna™ Gold Folding Clasp”
  • “Gold-tone rotating bezel ring with raised numerals on a textured ground, mounted on a darker tantalum bezel base”
  • “Helium escape valve crown visible at the 10 o'clock position and winding crown at 3 o'clock”

Dial Architecture and Visible Indications

Visual observation of the watch shows a grey dial surface featuring a raised or laser-engraved horizontal wave pattern across its field. The time is indicated by applied luminous hour markers framed in gold-tone borders, paired with skeletonised hour and minute hands incorporating luminescent inserts.

An external crown is situated at the 10 o'clock case flank, corresponding to a helium escape valve configuration, alongside the primary winding crown positioned at 3 o'clock.

Evidence for this section
  • “Grey dial with raised or laser-engraved horizontal wave pattern”
  • “Applied luminous hour markers framed in gold-tone borders”
  • “Skeletonised hour and minute hands with luminescent inserts”
  • “Helium escape valve crown visible at the 10 o'clock position and winding crown at 3 o'clock”

Reported Movement and Accompanying Material

The movement is catalogued in the listing as the self-winding calibre Omega 8806. Because no movement or caseback photographs are provided in the source documentation, internal finishing, mechanical condition, and specific serial numbers are not recorded in this source.

According to the seller's documentation, the watch is accompanied by an International Warranty Card, Pictograms Card, Master Chronometer Card, Certificate, Booklet, Presentation Box, and Outer Packaging.

Evidence for this section
  • “Calibre Self-winding (automatic) Omega 8806”
  • “Accompanied by International Warranty Card, Pictograms Card, Master Chronometer Card, Certificate, Booklet, Presentation Box, and Outer Packaging”

Open research questions

  • What specific individual serial number is engraved on the case lug or movement?
  • Does direct inspection of the caseback reveal a solid metal medallion or an open sapphire exhibition window?
  • What specific retail partner and sale date are documented on the included International Warranty Card?

Source evidence

Recorded claims and source quotations for Omega Seamaster Diver 300M Ref. 210.60.42.20.99.001
FieldSource-reported valueSource quotation
ReferenceRef. 210.60.42.20.99.001“Ref. 210.60.42.20.99.001”
Case diameter42mm“Diameter 42mm”
MetalTitanium ‑ Tantalum ‑ Sedna™ Gold“Titanium ‑ Tantalum ‑ Sedna™ Gold”
CalibreSelf-winding (automatic) Omega 8806“Calibre Self-winding (automatic) Omega 8806”
Year2019“Year 2019”
Clasp typeTitanium ‑ Tantalum ‑ Sedna™ Gold Folding Clasp“Clasp/Buckle Titanium ‑ Tantalum ‑ Sedna™ Gold Folding Clasp”
Included accessoriesInternational Warranty Card, Pictograms Card, Master Chronometer Card, Certificate, Booklet, Presentation Box, and Outer Packaging“Accompanied by International Warranty Card, Pictograms Card, Master Chronometer Card, Certificate, Booklet, Presentation Box, and Outer Packaging”

Visible details

  • Grey dial with raised or laser-engraved horizontal wave pattern
  • Applied luminous hour markers framed in gold-tone borders
  • Skeletonised hour and minute hands with luminescent inserts
  • Gold-tone rotating bezel ring with raised numerals on a textured ground, mounted on a darker tantalum bezel base
  • Multi-link metal bracelet featuring grey, dark grey, and gold-tone elements
  • Helium escape valve crown visible at the 10 o'clock position and winding crown at 3 o'clock

Research qualifications

  • Movement and caseback are not visible in the photograph; movement calibre Omega 8806 is source-reported
  • Individual serial number is not disclosed in the listing text

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

Omega, Seamaster Diver 300M Titanium ‑ Tantalum ‑ Sedna™ Gold | Omega Watch

Reviewed 2026-10-21 · Record 8f26fd86e3

Terms in this record

Glossary explanations for terms named in this object’s record.