Omega · Speedmaster · Grey Side of the Moon · meteorite dial · Sedna gold bezel · on Amazon

The Speedmaster with a meteorite for a dial. One left.

This is the Speedmaster whose dial fell from the sky: the Grey Side of the Moon Meteorite, reference 311.63.44.51.99.001, a 44.25mm case in grey ceramic with an 18k Sedna gold tachymeter bezel, a dial sliced from the Gibeon iron meteorite and acid-etched so its Widmanstatten crystal pattern shows, two counters, the date at six, on a grey leather strap. Inside is Omega’s co-axial calibre 9300, an automatic column-wheel chronograph with a 60-hour reserve and a COSC certificate; 50 metres, about 104 grams. One left, from a marketplace seller on Amazon.

This Speedmaster on Amazon$10,000–$25,000 band
Omega Speedmaster Grey Side of the Moon "Meteorite" 44.25mm 311.63.44.51.99.001 (grey ceramic, Sedna gold bezel, meteorite dial, leather strap) — reference photograph

Case

44.25mm, 16.14mm thick, 21mm lugs, 49.80mm lug to lug, grey ceramic with an 18k Sedna gold tachymeter bezel, sapphire caseback, 50m, about 104 g

Omega 311.63.44.51.99.001; listing: 44.25mm

Movement

Omega co-axial calibre 9300, automatic column-wheel chronograph, COSC, 60 h

Omega; listing: automatic

Dial

Grey Gibeon meteorite, acid-etched Widmanstatten pattern, Sedna gold applied markers and hands, two counters, date at 6

Listing title: meteorite; photograph; Omega

Strap

Grey leather, foldover clasp

Photograph; Omega: strap colour grey

Reference

311.63.44.51.99.001

Listing title and model row

Seller

MS-TR JAPAN, marketplace seller; in stock; 30-day returns; only 1 left; condition not stated

Amazon buy box, 2026-09-14

Meteorite, ceramic, Sedna gold

Omega’s ceramic Speedmasters take the Moonwatch shape, enlarge it to 44.25mm and make the whole case, bezel, pushers and crown from one colour of zirconium oxide ceramic, so nothing scratches and the watch weighs about 100 grams on a strap. Inside is a co-axial automatic chronograph rather than the hand-wound Moonwatch calibre, with the two counters of the 9300 family: hours and minutes together at three, small seconds at nine.

The Grey Side of the Moon Meteorite adds three materials to that formula: a grey ceramic case, a bezel in Omega’s 18k Sedna gold alloy, and a dial cut from a slice of the Gibeon meteorite that fell in Namibia, etched with acid so the nickel-iron crystal structure that formed over millions of years in space shows as a pattern no two dials share. It is the Speedmaster for someone who wants the Moonwatch idea taken literally.

Omega Speedmaster Grey Side of the Moon "Meteorite" 44.25mm 311.63.44.51.99.001 (grey ceramic, Sedna gold bezel, meteorite dial, leather strap) — reference photograph

Reading the listing

The listing carries the reference 311.63.44.51.99.001 in the title and model row and calls it a 44.25mm automatic chronograph with a meteorite dial. The photograph shows the grey ceramic case, Sedna gold bezel, meteorite dial and grey strap. The thickness, lug width, lug to lug, weight, calibre, COSC certification, reserve and 50 metres 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.

Omega Speedmaster Grey Side of the Moon "Meteorite" 44.25mm 311.63.44.51.99.001 (grey ceramic, Sedna gold bezel, meteorite dial, leather strap) — reference photograph

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 ceramic Speedmasters in case this one has sold.

Speedmasters 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.

Omega Speedmaster Grey Side of the Moon "Meteorite" 44.25mm 311.63.44.51.99.001 (grey ceramic, Sedna gold bezel, meteorite dial, leather strap) — reference photograph

Specs

Reference
311.63.44.51.99.001
Case size
44.25mm, 16.14mm thick, 21mm lugs, 49.80mm lug to lug, about 104 g
Case material
Grey ceramic case with 18k Sedna gold tachymeter bezel; sapphire caseback
Movement
Omega co-axial calibre 9300, automatic column-wheel chronograph, COSC chronometer
Caliber type
Omega 9300 co-axial, COSC
Crystal
Sapphire, anti-reflective both sides
Water resistance
50m (5 bar)
Power reserve
60 hours
Complications
Chronograph (60 minutes and 12 hours on one counter at 3, small seconds at 9), date at 6
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 Speedmaster Grey Side of the Moon Meteorite: grey ceramic, a Sedna gold bezel and a Gibeon meteorite dial over the co-axial 9300, one left on Amazon from a marketplace seller.

Strengths

  • A genuine meteorite dial; no two alike
  • Grey ceramic case with an 18k Sedna gold bezel
  • Co-axial 9300, column wheel, 60 hours
  • Full reference on the listing; Amazon’s return window

Trade-offs

  • Condition and warranty card not stated by the seller; ask
  • 44.25mm and 16.14mm; a big watch
  • 50 metres; not a swim watch
  • MS-TR JAPAN ships from Japan; ask about delivery time

Buy it if

Someone who wants the most unusual Speedmaster dial Omega makes, in ceramic and gold.

Skip it if

You want the hand-wound Moonwatch, a smaller case, or a stated condition.

This Speedmaster on Amazon$10,000–$25,000 band

FAQ

Yes, per Omega: a slice of the Gibeon iron meteorite, acid-etched to reveal the Widmanstatten pattern of its nickel-iron crystals. Each dial’s pattern is different.

Sources

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 Speedmaster Grey Side of the Moon "Meteorite" 44.25mm 311.63.44.51.99.001 (grey ceramic, Sedna gold bezel, meteorite dial, leather strap)

Reference 311.63.44.51.99.001 · $10,000–$25,000

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

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