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Model reference: 311.92.44.51.01.007
Reference 311.92.44.51.01.007: the Speedmaster Dark Side of the Moon, a 44.25 mm black ceramic chronograph with two counters, a date above six and a black strap.
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About this watch
The Speedmaster Dark Side of the Moon is the black-ceramic Speedmaster, and this page covers reference 311.92.44.51.01.007. Omega’s own data for the reference gives a 44.25 mm case machined from black ceramic, 16.14 mm thick and 49.80 mm from lug to lug, 21 mm between the lugs, and a brushed ceramic bezel carrying a matt chromium-nitride tachymeter scale; the dial is polished black ceramic with blackened applied subdial rings and applied indexes in 18-carat white gold, and the reference is rated to 50 m.
The four frames below are shown as they arrived. Read together they cover the dial straight on, the case flank with the crown and both pushers, the dial and bezel seen close up, and the back of the watch. What a photograph cannot settle — which movement is fitted, the metal each part is actually made from, the strap supplied, the weight, and the water-resistance state of this particular watch — is asked for in the WhatsApp conversation, and the inquiry list at the end of the page sets it out.
On this reference the case, the bezel and the dial are all black ceramic, which is why the watch reads as one dark object rather than as a metal case with a black dial set into it. The tachymeter scale on the bezel is matt and the dial print is light on dark, so those are what carry the legibility: there is no contrast between case and dial to fall back on, and every number on the watch has to earn its place.
Weight is a separate question from material. A useful answer arrives as a figure in grams from a scale with the watch on it, not as a claim about what a material usually weighs. On scratches, the surface of the actual watch matters more than any general statement: ask for the case flank, the bezel edge and the dial photographed in daylight and again at a raking angle, because a mark on a glossy black surface is easiest to see when light skims across it.
The counter at nine o’clock is printed 20, 40 and 60 with 60 at the top, and the counter at three o’clock is printed 12, 9 and 6, so the left one is calibrated for a single hour and the right one runs on into hours. Read them the way any chronograph is read: the central seconds hand starts and stops, and the two smaller hands hold what the centre hand has already swept, so the pair together keeps the running total without the centre hand having to be watched.
The date sits in a plain aperture low in the dial, above six o’clock, with no magnifier over it, so it takes up less of the dial than a lensed date would. Whether the minutes and hours print exactly as the scales suggest on the watch being offered is worth confirming on a short timing video, which shows the counters stepping rather than frozen in a single still frame.
The reference figures are 44.25 mm across, 16.14 mm thick, 49.80 mm lug to lug and 21 mm between the lugs. All four matter and the diameter is the least informative of them on its own: lug-to-lug is what decides whether the case finishes inside the edge of the wrist, and 16 mm of thickness is enough to change how a cuff and a shirt sleeve pass over the watch.
The honest comparison is against a watch you already wear, measured in the same way. If your current chronograph is 42 mm but longer from lug to lug than this one, this watch may sit smaller on the wrist than its diameter suggests. Photographs of the offered watch on a wrist, with the wrist measured and stated, answer the fit question better than any table of numbers.
Begin with the straight-on frame, because it is the only one where the whole layout is visible at once: both counters, the date window in the lower half, the doubled marker at twelve and the print above and below the centre. Then use the close-up for the smaller checks — the shape of the counter hands, the tachymeter numerals and whether the dial print sits crisp against the black surface or softens at its edges.
The angled frame is where the case is judged: the flank, the crown between the two pushers, and how the strap leaves the lugs. The last frame turns the watch over and shows the back and the folded strap, which is where marks the front view hides are most likely to appear, so look at the rim lettering and the condition of the strap surface there.
A photograph shows the outside of a watch and nothing more. It cannot say which movement is fitted, what the case, bezel, dial or clasp is actually made from on the offered piece, or what the strap is made of — the shoulder of a strap above the lugs looks the same whether it is rubber, leather or a fabric laid over leather, which is precisely the open question for this reference.
Water resistance is a state rather than a specification. The reference is rated to 50 m, but what a particular watch will tolerate after its own history of use is a question about that watch, answered by test evidence and a date if any exists. Weight is the third thing no frame can show, which is why a measured figure in grams is asked for separately.
Pin the offer to the reference number and to photographs of the specific watch rather than of the model in general. Ask for the dial straight on in daylight, the case back, the strap and clasp from both sides, and the case flank at a raking angle; then ask for the measurements and the weight in grams to be stated alongside those images so the numbers and the pictures refer to the same watch.
After that, settle the things a picture cannot reach: the movement fitted, the metal of each part, the strap and clasp supplied, and any test evidence for water resistance. The commercial side deserves the same clarity — the price for one watch, the shipping cost to your country, the countries shipped to and the lead time — and once all of it is in writing you can judge whether the piece matches what you understood you were buying.
Specification
| Detail | Description |
|---|---|
| Model reference | 311.92.44.51.01.007 |
| Model size | 44.25 mm |
| Dial | Black, polished ceramic |
| Dial print | OMEGA and Speedmaster above the centre; Co-Axial Chronometer below |
| Hour-marker layout | Applied baton markers, doubled at twelve |
| Hand arrangement | White-gold hour and minute hands, rhodium-plated centre chronograph seconds hand with a red tip |
| Date display | Plain aperture above six o’clock |
| Subdial layout | Sixty-minute scale at nine o’clock printed 20, 40, 60; twelve-hour scale at three o’clock printed 12, 9, 6 |
| Bezel design | Brushed ceramic, matt chromium-nitride tachymeter scale |
| Colour combination | Black case, bezel and dial with light markers and print, and one red-tipped hand |
| Strap shown | Black strap, smooth surface with a raised centre line in the photographs |
| Clasp | Ceramic and titanium foldover, on the reference strap |
| Case back | Transparent back with lettering around the rim |
| Movement (reference design) | Co-Axial calibre 9300, 60 hours of power reserve |
Questions
The message below is pre-written with the model, the reference and this page. The button opens a WhatsApp draft for you to review before sending.
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Six frames that answer more than a long description: daylight dial, bezel straight on, bracelet closed, clasp, case back and a short video of the moving parts.
Read the guide →A practical guide to model references, measurements, materials and the questions to ask when comparing watches.
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