Illustrative render — hero view of the Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.32.42.20.01.001 (steel, black ceramic dial, black rubber strap)

Omega · Seamaster Diver 300M · 42mm · black · rubber strap · on Amazon

The Seamaster on rubber. Lighter, cheaper, same movement.

This is the 2018 Seamaster Diver 300M with the bracelet swapped for Omega’s black rubber strap: the same 42mm steel case, black ceramic wave dial, black ceramic bezel with a white enamel scale, skeleton hands, the date at six, the helium valve at ten, closed with a steel pin buckle. Inside is the calibre 8800, a Co-Axial Master Chronometer certified by METAS, with about 55 hours of reserve and 300 metres on the case. On rubber it weighs 109 grams against 194 on the bracelet, and it is the least expensive current Seamaster Diver 300M on this page. Listed under Omega’s own price when we read it, from a marketplace dealer.

Case

42mm, 13.56mm thick, 49.9mm lug to lug, 20mm lugs, steel, unidirectional black ceramic bezel, conical helium escape valve, sapphire caseback, 300m

Listing: 42mm, 300m, rotating bezel; Omega 210.32.42.20.01.001 (the dealer says 11mm thick; Omega says 13.56)

Movement

Omega Co-Axial Master Chronometer calibre 8800, METAS certified, about 55 h

Omega 210.32.42.20.01.001

Dial

Black polished ceramic with laser-engraved waves, rhodium-plated skeleton hands and raised indexes, white Super-LumiNova, date at 6

Listing: black dial; photograph; Omega

Strap

Black rubber strap, steel pin buckle; 109 g on the strap per Omega

Dealer description: black rubber band, tang clasp; Omega

Reference

210.32.42.20.01.001

Listing title and model row

Seller

World Of Watches, marketplace dealer; in stock; 30-day returns; 8 ratings when read; condition not stated

Amazon buy box, 2026-09-13

The 2018 Seamaster, on the strap

Omega rebuilt the Seamaster Diver 300M for its 25th anniversary in 2018 and gave it back the wave dial of the 1993 original, laser-engraved into polished ceramic this time so it never fades. The bezel insert is ceramic too, with the diving scale in white enamel, and the movement is the 8800, a Master Chronometer tested by METAS for accuracy and for resistance to magnetic fields of 15,000 gauss. The helium valve at ten kept its place and got a conical shape; the date moved to six.

Omega sells the same head on a bracelet or on its own rubber strap, and the strap version is the one divers and swimmers actually pick: it dries in a minute, it does not pinch, and it takes a big chunk off the price. The rubber is moulded with a wave pattern on the outside, the buckle is a plain steel pin, and the head is the black-dial 42mm with everything the bracelet watch has. If you want the bracelet later, Omega’s fits the 20mm lugs.

Illustrative render — the 2018 seamaster, on the strap of the Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.32.42.20.01.001 (steel, black ceramic dial, black rubber strap)

Reading the listing

The listing carries the full reference, 210.32.42.20.01.001, in the title and the model row, and the dealer’s description lists the black dial, steel case, black rubber band, automatic movement, 300 metres, unidirectional bezel, a tang clasp and a 42mm case. The one figure that disagrees with Omega is the thickness: the dealer says 11mm, Omega publishes 13.56mm, and the copy here uses Omega’s. The calibre, its METAS certification, the reserve, the ceramic dial and bezel and the sapphire caseback are Omega’s published figures for the reference.

The seller is World Of Watches, a marketplace dealer, and the rows we read do not state whether the watch is new with Omega’s five-year warranty; ask, and ask for the box and card. It has 8 ratings on Amazon when we read it. Every figure here comes from the listing and from Omega’s published description, not from handling the watch.

Illustrative render — reading the listing of the Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.32.42.20.01.001 (steel, black ceramic dial, black rubber strap)

Buying it on Amazon

This is a regular Amazon listing from a marketplace dealer with Amazon’s 30-day return window; it is not a Luxury Stores pre-owned unit and the dealer has not published a condition. It was listed under Omega’s own list price when we read it. The second button opens the live search for Seamaster Diver 300Ms on rubber in case this one has sold.

Seamaster Diver 300Ms have resold for under new and close to what pre-owned buyers paid, sometimes more, sometimes less; that is a pattern, not a promise, and nothing here is investment advice.

Illustrative render — buying it on amazon of the Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.32.42.20.01.001 (steel, black ceramic dial, black rubber strap)

Specs

Reference
210.32.42.20.01.001
Case size
42mm, 13.56mm thick, 49.9mm lug to lug, 20mm lugs
Case material
Stainless steel, unidirectional black ceramic bezel with white enamel diving scale, conical helium escape valve, screw-in crown, sapphire caseback
Movement
Omega Co-Axial Master Chronometer calibre 8800, automatic, METAS certified
Caliber type
Omega 8800, Master Chronometer
Crystal
Domed sapphire, anti-reflective both sides
Water resistance
300m (30 bar)
Power reserve
About 55 hours
Complications
Date
Origin
Swiss Made

Specifications as published by Omega. We research from manufacturer documentation and published sources rather than hands-on testing. Researched 2026-09-13.

Verdict

The black Seamaster Diver 300M on Omega’s rubber strap with the 8800 Master Chronometer, on Amazon from a marketplace dealer under Omega’s list price: the lightest and least expensive current Seamaster here, with the full reference on the listing and Amazon’s return window.

Strengths

  • Calibre 8800 Master Chronometer, about 55 hours, 300 metres
  • Black ceramic wave dial and ceramic bezel; neither fades
  • The least expensive current Seamaster Diver 300M on this page; 109 grams on the strap
  • Full reference on the listing; Amazon’s return window

Trade-offs

  • Condition and warranty card not stated by the dealer; ask
  • Dealer’s thickness figure is wrong; expect 13.56mm
  • Rubber; the bracelet is a separate purchase from Omega
  • Pin buckle, not the bracelet’s diver extension

Buy it if

Someone who swims or dives in their watch, or who wants the Seamaster at its lightest and lowest price.

Skip it if

You want the bracelet, the blue dial, or a stated condition and warranty date.

FAQ

It is the current Seamaster Diver 300M, the model line Bond has worn since 1995, in black on the rubber strap. The film-specific 007 editions are different references.

Sources

Researched and last updated 2026-09-13. We do not test watches in hand; every figure above is traceable to the manufacturer or the sources listed here.

Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.32.42.20.01.001 (steel, black ceramic dial, black rubber strap)

Reference 210.32.42.20.01.001 · $5,000–$10,000

Prices and availability change; the band above is a research figure, so check the current listing.

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