Start With the Movement, Not the Photos
If you take one thing from this guide, take this: a replica listing for an Omega 2579 style watch is only as good as the movement photo and the stated case dimensions. Sellers who post glossy wrist shots but no movement image, no caseback image, and no measured diameter are selling a picture, not a watch. Ask three questions before you pay. What caliber is inside, what are the caliper measurements of the case, and what crystal material is fitted. A seller who answers all three with specifics is worth continuing with. A seller who answers with adjectives is not.
Omega 2579 Copy: What That Number Really Tells You
What 2579 Means in Omega Numbering
Omega uses four digit numbers in more than one place. Some are caliber numbers stamped on movements, and some are case reference numbers stamped inside casebacks. Because of that overlap, the same string of digits can point at two different things depending on who typed it into a listing. Before you compare a replica to an original, pin down which one the seller means. Ask for a photo of the movement and a photo of the inside of the caseback. If the seller cannot show either, treat the model name as marketing text rather than a specification. Buyers who skip this step often end up with a watch whose proportions match nothing in the original catalog.
What to Check Before You Buy
Movement
- Hand wound or automatic, and whether the winding action feels smooth through the full range.
- Beat rate: vintage style calibers run at 18,000 to 21,600 vibrations per hour, most modern clones at 21,600 to 28,800.
- Jewel count and whether the seller will name the base caliber.
- Sub seconds hand placement, which is the giveaway on mid century designs.
Case and finishing
- Case diameter, lug to lug length, thickness, and lug width, all measured with a caliper.
- Bezel construction: press fit, screwed, or friction, and whether it lines up at 12.
- Caseback engraving depth and font, which are often shallow or oversized on replicas.
Dial, crystal, and strap
- Applied versus printed indices, and whether the print sits flat or floats above the surface.
- Crystal material: acrylic domes and sapphire have different scratch behavior and different edge reflections.
- Lug width on the strap or bracelet, since a mismatch of half a millimeter shows at the spring bar.
Parameter Bands Worth Aiming For
- Mid century dress proportions: 34 to 36.5 mm across, 42 to 45 mm lug to lug, 18 mm lug width, 9 to 11 mm thick.
- Modern reissue proportions: 38 to 41 mm across, 46 to 49 mm lug to lug, 19 to 20 mm lug width.
- Hand wound movements: 40 to 50 hours of power reserve when healthy, 17 to 21 jewels.
- Automatic movements: 38 to 42 hours of power reserve, 21,600 to 28,800 vibrations per hour.
- Accuracy after regulation: within plus or minus 10 seconds a day is realistic, within 5 is a good sample.
- Water resistance: 30 m means splashes only. Anything above that needs confirmed gaskets and a crown that seals.
Pitfalls That Cost Buyers Money
- Stock photos. If the images appear on several sellers' pages, they are not the watch you will receive.
- Unmeasured cases. A watch listed as 36 mm that arrives at 40 mm wears like a different model entirely.
- Water resistance claims with no gasket information. Assume splash only until proven otherwise.
- Brand marks on a movement that was not made by that brand, which is the definition of a counterfeit part.
- No timegrapher data. Rate, amplitude, and beat error tell you more than any description.
- Wear on the crown and tube threads, the first thing to fail and the hardest to source.
A Note on Legality and Resale
Omega owns its name and its logo, and a watch that carries those marks without authorization is an infringing product. Border agencies in the United States seize counterfeit trademarked goods, and shipping a replica across a border carries real risk of loss with no refund. Resale value is close to zero, authorized service centers will not touch the watch, and parts often have to come from the same seller who sold it. Budget accordingly and treat the purchase as a disposable cost, not an investment.
FAQ
Will a 2579 replica pass as genuine to an expert?
No. Movement finish, caseback stamping depth, dial print, and hand shape are the usual tells, and anyone who handles the original regularly will catch at least two of them.
Is a Swiss movement claim worth paying for?
Ask for the calibre name and a photo of the movement under the balance. Many listings use the phrase as a loose descriptor, and the base caliber matters far more than the label.
How do I measure a case without a caliper?
Wrap a strip of paper around the case, mark where it overlaps, and divide the length by 3.14. It is not exact, but it will catch the difference between a 36 mm and a 40 mm case.
How many photos should a seller provide?
Ask for the dial straight on, the caseback, the crown, the movement, and a timegrapher screen. A timegrapher shot with a clear rate in seconds per day is the single most useful image.
What should a timegrapher reading show?
Rate within plus or minus 10 seconds per day, amplitude above 250 degrees for a healthy automatic, and beat error under 1.0 ms. Anything outside those bands suggests the watch needs service.