
Omega · Seamaster Diver 300M · 42mm · steel and yellow gold · black · bracelet · on Amazon
The Seamaster in steel and yellow gold. The 1990s look, the 2018 watch.
This is the Seamaster Diver 300M at 42mm in steel and 18k yellow gold: reference 210.20.42.20.01.002, a steel case with a yellow gold bezel rim, crown and helium valve, a black ceramic bezel ring with a gold diving scale, a black ceramic dial with laser-engraved waves and gold markers, the date at six, on the steel and yellow gold bracelet with a foldover clasp and diver extension. Inside is Omega’s co-axial calibre 8800, a Master Chronometer automatic with about 55 hours of reserve; 300 metres, 13.56mm thick, about 204 grams. Yellow gold rather than the Sedna rose of its twin on this page; listed under Omega’s own price when read, from a marketplace seller on Amazon; the seller’s 11mm and 5.5-pound rows are wrong.
Case
42mm, 13.56mm thick, 20mm lugs, 49.90mm lug to lug, steel with 18k yellow gold bezel rim, crown and helium valve, black ceramic bezel ring with gold scale, sapphire caseback, 300m, about 204 g
Omega 210.20.42.20.01.002; listing: 42mm, 300m; rows say 11mm and 5.5 pounds (wrong)
Movement
Omega co-axial calibre 8800, automatic, Master Chronometer (METAS), 55 h
Omega; listing: automatic chronometer
Dial
Black ceramic with laser-engraved waves, yellow gold applied markers and hands, date at 6
Photograph; listing: black dial
Bracelet
Steel and 18k yellow gold bracelet, foldover clasp with comfort setting and diver extension
Omega; photograph; listing: steel and gold bracelet, 20mm
Reference
210.20.42.20.01.002
Listing title and model row
Seller
MS-TR JAPAN, marketplace seller; in stock; 30-day returns; condition not stated
Amazon buy box, 2026-09-14
Yellow gold on the Bond watch
The first Seamaster Diver 300M of 1993 came in steel and yellow gold, and this reference is the 2018 generation in that combination: the laser-engraved ceramic wave dial, the ceramic bezel ring, the screw-in helium valve at ten and the calibre 8800, with the bezel rim, crown, valve and bracelet centre links in 18k yellow gold rather than the rose Sedna of its twin on this page. Yellow reads warmer and more traditional; the black dial and bezel keep it from looking like jewellery.
Omega prices the two gold versions the same; on Amazon when read the Sedna twin was cheaper. Both are 42mm and 13.56mm, about 204 grams on the bracelet. The rows here say 11mm thick and 5.5 pounds, both data-entry errors.

Reading the listing
The listing carries the reference 210.20.42.20.01.002 in the title and model row and calls it a 42mm automatic chronometer with 300 metres on a 20mm steel and gold bracelet; its 11mm and 5.5-pound rows are wrong. The photograph shows the yellow gold bezel rim, crown and valve, the black bezel with gold scale, the wave dial with gold markers, the date at six and the two-tone bracelet. The thickness, lug width, lug to lug, weight, calibre, certification and reserve are Omega’s published figures for the reference.
The seller is MS-TR JAPAN, a marketplace seller, 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. Nothing here was measured on the watch.

Buying it on Amazon
This is a regular Amazon listing from a marketplace seller with Amazon’s 30-day return window; it is not a Luxury Stores pre-owned unit and the seller has not published a condition. The second button opens the live search for Seamaster Diver 300Ms 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.

Specs
- Reference
- 210.20.42.20.01.002
- Case size
- 42mm, 13.56mm thick, 20mm lugs, 49.90mm lug to lug, about 204 g
- Case material
- Stainless steel with 18k yellow gold bezel rim, crown and helium escape valve; unidirectional bezel with black ceramic ring and gold scale; sapphire caseback
- Movement
- Omega co-axial calibre 8800, automatic, Master Chronometer (METAS), 15,000 gauss
- Caliber type
- Omega 8800 co-axial Master Chronometer
- Crystal
- Domed sapphire, anti-reflective both sides
- Water resistance
- 300m (30 bar)
- Power reserve
- 55 hours
- Complications
- Date at 6, helium escape valve
- Origin
- Swiss Made
Specifications as published by Omega. We research from manufacturer documentation and published sources rather than hands-on testing. Researched 2026-09-14.
Verdict
Omega’s Seamaster Diver 300M in steel and yellow gold on the two-tone bracelet, the Master Chronometer 8800 and 300 metres, on Amazon from a marketplace seller under Omega’s price.
Strengths
- The original 1993 metal mix on the 2018 Seamaster
- Yellow gold bezel rim, crown, valve and bracelet links
- 8800 Master Chronometer, 55 hours, 300 metres
- Listed under Omega’s own price when read; Amazon’s return window
Trade-offs
- Condition and warranty card not stated by the seller; ask
- The Sedna twin on this page was cheaper when read
- About 204 g on the bracelet
- MS-TR JAPAN ships from Japan; ask about delivery time
Buy it if
Someone who wants the Seamaster in yellow gold and steel, the way it first came.
Skip it if
You want rose gold, all steel, or a stated condition.
FAQ
Omega’s co-axial Master Chronometer for the 42mm Seamaster Diver 300M and the smaller Planet Ocean: silicon balance spring, a single barrel for 55 hours, tested by METAS to 15,000 gauss, with a date.
Compare
Sources
- Omega Seamaster Diver 300M 210.20.42.20.01.002, official page
- Amazon marketplace listing (MS-TR JAPAN), read 2026-09-14
Researched and last updated 2026-09-14. We do not test watches in hand; every figure above is traceable to the manufacturer or the sources listed here.
Omega Seamaster Diver 300M 42mm 210.20.42.20.01.002 (steel and yellow gold, black ceramic bezel, black dial, two-tone bracelet)
Reference 210.20.42.20.01.002 · $10,000–$25,000
Prices and availability change; the band above is a research figure, so check the current listing.
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