A replica of the Omega 2579 is judged on three things: case size, dial finish, and the movement inside. Mid-century Omega references in the 25xx block were small by modern standards, so a copy that measures 40 mm across looks wrong on the wrist even when the photos are flattering. Buy from a seller who lists measured dimensions, names the movement, and photographs the actual watch instead of a catalog render. Assume every claim about original parts is unverified until the caseback comes off.
What the 2579 reference represents
The 2579 sits in the reference block Omega used from the late 1940s into the early 1950s for dress and sports models. Watches of that era share a family look: a slim case in the low 30s in millimeters, a domed acrylic crystal, a snap or small screw caseback, and a hand-wound or bumper automatic movement. Surviving originals are scarce and many have been restored, redialed, or rebuilt from parts. That history is exactly why the replica market for this reference is muddy. Plenty of listings borrow the reference number without matching the proportions that make the watch look right.
What to look for
Case and proportions
Ask for a caliper photo. The diameter without the crown, the thickness, and the lug width matter more than any marketing copy. Look at the lug shape: period lugs are slim and taper toward the spring bar. A thick, slab-sided case is the clearest sign of a modern generic case that was never modeled on the original.
Dial and hands
Printing should be sharp under a loupe, with even spacing and no smudged edges. Indices are either applied or printed, and the two look different in raking light. Aged lume on a period dial is uneven. A uniform beige that covers every marker the same way is a manufactured finish. Hands should match the period shape and reach the minute track without overshooting it.
Movement
A thin hand-wound movement keeps the case profile close to the original. Many budget replicas use a thicker automatic, which forces a taller case and a different caseback. Ask for a photo of the movement and the caseback interior. If the seller will not open the watch, walk away.
Crystal, crown, and strap
A domed acrylic crystal with slight edge distortion is correct. Flat sapphire reads as a modern build. The crown should be small and proportional; oversized crowns are a common shortcut. Strap width should match the lugs, usually 16 to 18 mm on a watch of this size.
Parameter bands
- Case diameter: 33 to 35 mm reads period correct; 36 to 38 mm reads modern scaled; 40 mm and up reads wrong.
- Case thickness: 9 to 11 mm suits a hand-wound build.
- Lug width: 16 to 18 mm.
- Crystal: domed acrylic over flat mineral or sapphire.
- Water resistance: assume none unless the seller states a tested rating.
- Movement: hand-wound over automatic for proportion; automatic over quartz for feel.
Pitfalls
- Listings built from stock images with no measured dimensions.
- "Swiss made" claims without a movement photo.
- Patina applied evenly across the dial rather than aged in place.
- Sellers who answer sizing questions with guesses.
- Ignoring import rules. Counterfeit goods can be seized and destroyed at the border, and reselling a watch that carries a protected trademark carries real legal risk. A sterile-dial homage avoids most of that exposure.
FAQ
Is a fake Omega 2579 worth buying?
Only if the seller documents the case, dial, and movement. A well-built homage with a blank dial gives you the vintage look without the trademark problem.
What size should I choose?
Match the original: 33 to 35 mm. If that feels too small, accept that you are buying a modern interpretation rather than a copy of the reference.
Can I wear it in water?
No. Gaskets on vintage-styled cases are rarely tested. Keep it dry.
Will it pass as genuine?
No. Anyone who handles period watches will check the movement, the caseback stamping, and the dial printing. Never represent a replica as an original, and never sell one as such.