Short answer first
The "323" in these listings is a seller-side model tag, not an Omega catalog reference. It points at the Seamaster Aqua Terra 150M family, the one with the teak deck dial and the date at 3 o'clock. Judge the watch on the case, dial, bracelet and movement in front of you. Two watches carrying the same 323 tag can be very different inside, so the tag on its own tells you almost nothing about quality.
What each price band gets you
Replica prices drift, so treat these as rough bands rather than fixed numbers.
- Under $150: quartz or a generic automatic, printed dial, hollow end links. Fine as a beater, obvious up close.
- $200 to $350: A2824 or Miyota 9015 inside, applied markers, sapphire crystal, etched caseback. This is the value zone.
- $400 and up: clone 8500 or 8900 style movements, better dial texture, correct bracelet and clasp, cleaner finishing on the case flanks.
The movement decides how it feels
An A2824 runs at 28,800 vibrations per hour with roughly a 38 hour reserve. It sweeps smoothly, winds well and is cheap to service or swap. A Miyota 9015 beats the same speed but winds in one direction only, and the rotor is audible when your wrist moves. Neither is a problem, but they feel different.
Above that you get movements sold as clone 8900. The genuine 8900 lets you jump the hour hand on its own while the watch keeps running, and it uses twin barrels for a longer reserve. Some clones copy the hour jump, most do not. If a seller claims it, ask for a short video of the crown being pulled and the hour hand moved before you send money.
Dial and case details that separate the tiers
The teak lines should be raised and catch light as you tilt the watch. On cheap dials they are printed flat and look grey under a lamp. Check the date window cut, the font on the date wheel, and whether the date sits centered rather than riding low in the opening.
- Applied logo and Aqua Terra text at the right height, not floating or sunk.
- Anti reflective coating: under a lamp a good crystal shows a faint blue or purple tint. A milky grey haze means poor or single-sided coating.
- Case flanks with brushed sides and polished bevels that meet in a straight line down the lugs.
- Crown that screws down with no grit and no wobble when unscrewed.
Bracelet and clasp
Ask whether the links are screwed or pin and collar. Screwed links are easier to size and hold up better. Look at how the end links sit against the case: gaps and sharp edges are the giveaway on cheaper builds. The clasp stamp should be deep and clean, not laser-etched and shallow. If you want the rubber strap version, note that replica rubber often smells and picks up lint in a way the real one does not.
Tells on weak examples
- Markers misaligned with the rehaut or with each other.
- Lume that glows for a few minutes and then dies.
- Rotor rattle or a grinding noise when you shake it.
- Mineral glass instead of sapphire, which scratches within weeks.
- Caseback engraving that is shallow and hard to read at an angle.
Water, wear and service
Never swim with a replica straight out of the box, even when it is listed as 150 m. Gaskets sit dry for months in transit. Have a watchmaker pressure test it first, and expect a service or a movement swap within a few years of daily wear.
Checklist before you pay
- Get photos or video of the actual watch, not catalog shots.
- Ask for the movement name and the beat rate.
- Confirm sapphire crystal and whether coating is on one side or both.
- Check date alignment and marker alignment in a straight-on shot.
- Ask for a wrist shot so you can judge the 38.5 mm or 41 mm case on a real arm.
- Confirm link type and whether spare links come with it.
- Ask about the return window and who pays shipping.
- Pay with a method that gives you some recourse.
Common questions
Is 323 a factory name?
No. It is listing shorthand used by sellers, and different sellers mean different things by it. Ask what factory and what movement, and judge those answers.
Should I pick 38.5 mm or 41 mm?
Under a 7 inch wrist, the 38.5 mm wears better and sits flatter. The 41 mm suits larger wrists and gives the teak dial more room. Lug to lug matters more than the number on the spec sheet.
How long will it last?
With an A2824 or Miyota, several years of regular wear is normal, and both are easy to replace. Clone movements are harder to source parts for, so budget for a full swap if something fails.