Top pick: the stainless steel automatic first copy of the IWC IW328056 that matches the official case diameter and thickness, uses the same functional movement layout as the genuine calibre, and is sold with dated photographs of the exact unit you will receive. The criteria that decide it are case geometry, dial printing, movement family, crystal and lume quality, and whether the seller can describe the inside of the watch without guessing.

Start with the official spec sheet, not the listing

IWC reference numbers change with every dial colour, strap option and metal variation, and the differences between neighbouring references are small. Before you compare a single first copy, pull the manufacturer's own product page for IW328056 and write down five numbers: case diameter, case thickness, lug width, water resistance rating and movement calibre. That list becomes your scorecard, and any replica listing that contradicts it is selling you a different watch with the right name attached.

  1. Case diameter and thickness, measured with callipers if you can.
  2. Lug width, so the strap or bracelet actually fits the case.
  3. Water resistance rating, and whether the caseback is genuinely sealed.
  4. Movement calibre and its functions, including date quickset if the genuine has it.
  5. Crystal type, whether sapphire, and whether it carries anti-reflective coating on both faces.

What separates a good first copy from a weak one

The gap between tiers is rarely about the logo. It shows up in the small mechanical and finishing details that you notice after a week of daily wear.

  • Case profile. A correct build keeps the same case band curve and lug shape, so the watch sits on the wrist like the original instead of floating or digging in.
  • Dial printing. Check numeral weight, marker height and the crispness of the text at the six o'clock position. Smudged or thick printing is the fastest tell.
  • Lume. Applied markers should be level and evenly filled, with no overflow onto the dial.
  • Movement. Ask which calibre family is inside, whether it is a Chinese clone or a modified Swiss base, and how it can be serviced locally.
  • Crown action. Winding should feel smooth, with clean clicks when setting the date and time.
  • Bracelet fit. End links should sit flush against the case with no visible gaps or rattle.

Pros and cons of the first copy route

Pros

  • You get the look and wrist presence of the reference for a fraction of the secondary market price.
  • Parts such as straps, spring bars and crystals are usually interchangeable with the genuine dimensions.
  • A good build can be worn daily without the anxiety that comes with an expensive original.

Cons

  • Resale value is close to zero, so treat the purchase as a wear cost, not an investment.
  • Water resistance is rarely tested at the factory, so swimming is a risk unless a watchmaker seals and pressure tests it.
  • Movement quality varies between batches from the same seller, which is why photos of the actual unit matter.
  • Authenticity is obvious to a trained eye under a loupe, particularly on dial printing and caseback engraving.

Inspection checklist when the watch arrives

  1. Measure the case and compare it to your written spec sheet.
  2. Wind it fully and check that it runs for a full day without stopping.
  3. Set the date through a full month cycle and confirm it flips cleanly at midnight.
  4. Look at the dial under a bright light at an angle for dust, scratches or uneven lume.
  5. Check the crown threads and confirm it screws down without cross-threading.

Who this suits, and when to skip it

Buy the first copy IW328056 if you want the silhouette for everyday rotation, you accept that it is a homage-grade object rather than an investment, and you are willing to spend a little extra on a pressure test and a regulation at a local watchmaker. Skip it if you need factory water resistance for diving, if you plan to resell, or if you expect the finishing of the original under magnification. For most buyers the sensible middle path is a mid-tier build with a serviceable movement and a plain leather or rubber strap, which keeps the cost of ownership predictable and the watch easy to live with.