The pick for most buyers is a mid-tier automatic replica of the IWC ref. IW323755, built on a Miyota 9015 or a clean ETA 2824 clone rather than a budget 2813. On a dive watch the money surfaces in three places: the movement, the bezel and case finishing, and the dial printing. Those three, plus an honest water-resistance claim, are the criteria this guide scores against. Cheap copies of this reference fail on bezel alignment and date-wheel font long before anyone notices crown-guard shape.

Movement: the first filter

The movement decides whether the watch keeps time, whether the date snaps over at midnight, and whether a watchmaker will touch it in five years. On a fake IW323755 you will run into three families.

Miyota 9015 builds

  • Pro: 28,800 vph, roughly 42 hours of power reserve, and a sweep that looks right in motion.
  • Pro: replacements are cheap and easy to source, so a dead movement is an inconvenience, not a loss.
  • Con: rotor noise on some samples, and the winding feel is lighter than a Swiss caliber.
  • Con: date-disc fonts vary by assembler, so judge the date window from photos, not from the spec sheet.

Best for: daily wear on a watch you intend to keep for years without servicing drama.

ETA 2824 clone builds

  • Pro: same architecture as the original caliber, so any competent watchmaker can regulate, service or swap it.
  • Pro: keyless works and hand-setting feel close to a Swiss movement.
  • Con: quality spread is wide. One bench's clone is not another's, and the difference shows up after a year.
  • Con: runs thicker in some cases, which lifts crystal height and caseback depth away from the original profile.

Best for: buyers who want the case proportions right and have a local watchmaker on call.

2813 and quartz builds

  • Pro: lowest entry cost, and quartz versions keep near-perfect time.
  • Pro: light on the wrist, which suits occasional wear.
  • Con: the 2813 stutters at the sweep and often has a coarse date change.
  • Con: quart builds put the seconds hand on a tick, which is visible from across a table.

Best for: a costume piece for a single event, not for anyone who handles the watch closely.

Case, bezel, and crown

This is where a replica either reads as a tool watch or as a novelty. A good example has crisp brushing on the case flanks, polished chamfers that stay straight along the lug, and a bezel that lines up at 12 with a firm, even click through the full rotation.

  • Pro signs: bezel action with no back play, a lume pip centred in its triangle, crown threads that engage in half a turn, and end links that sit flush against the case.
  • Con signs: a bezel that drifts past the marker, a crown that grinds, sharp lug edges, and a caseback engraving that looks stamped rather than cut.

Best for: anyone buying sight unseen should ask for a short video of the bezel turning and the crown being screwed down. Photos hide both problems.

Crystal, dial, and lume

Dial work is the cheapest thing to fake and the easiest thing to get wrong. On a fake IW323755, check the applied markers for even height, the printing for a consistent weight across the text, and the date window for a font that matches the reference.

  • Pro: sapphire with an inner anti-reflective coating, markers that sit level, and lume that charges in under a minute under a lamp.
  • Con: mineral glass with a purple cast, floating indices, and lume that glows for ten minutes and dies.

Best for: buyers who spend time around people who know watches. Dial detail is what gets noticed at arm's length.

Water resistance: the honest answer

Replica cases are not tested to ISO 6425, the standard that defines what a dive watch must survive, and no seller's claim changes that. Gaskets may be present, but the case is not pressure-tested and the crown seals are not certified.

  • Pro: many mid-tier examples survive hand washing and rain without fogging, provided the crown is screwed down and the caseback is tight.
  • Con: swimming, showering and diving are a risk to the movement, and water damage is never covered.

Best for: dry wear. Treat any replica as splash-resistant at most, whatever the listing says.

Which tier to buy

Entry tier

  • Pro: low risk if you only want the look for a season.
  • Con: weakest bezel alignment, plain mineral crystal, and a movement that rarely lasts two years.

Best for: a one-off event or a gift you do not expect to be inspected.

Mid tier

  • Pro: the balance point. Correct case proportions, sapphire, a serviceable automatic, and a bezel that lines up.
  • Con: you still pay for photos to be taken before shipping, and returns are awkward.

Best for: most buyers. This is the tier where the watch holds up to a handshake and a close look.

Top tier

  • Pro: closest case finishing, best dial printing, and the smoothest bezel action.
  • Con: diminishing returns. The last ten percent of accuracy costs the most and still is not the real thing.

Best for: collectors who already own the reference and want a travel stand-in.

Checklist before you pay

  1. Ask for a timestamped video of the seconds hand sweeping, the date changing, and the bezel turning.
  2. Confirm the movement by name, not by the phrase "high grade."
  3. Check the date font and window position against reference photos.
  4. Ask whether the caseback is engraved or laser-printed.
  5. Get the water-resistance answer in writing, then ignore it and keep the watch dry.
  6. Confirm the return window and who pays return shipping.