The short answer
Buy from a seller who will show dated photos and a video of the exact unit you are paying for, and take the middle tier rather than the cheapest one. On a replica IW328070, the details that give a watch away are not the logo or the box. They are case thickness, the font on the date wheel, the spacing of the dial text, and the finish where the lugs meet the strap. If a listing cannot state the movement caliber and the case diameter, walk away. If the seller will not send a timegrapher reading, walk away. The rest of this guide is detail on top of those two rules.
Write down the genuine specs first
Open the manufacturer page for the reference and copy five numbers into a note: case diameter, case thickness, lug width, water resistance rating, and movement caliber. Every judgement you make later is a comparison against that list. Dealers quote conflicting figures for this reference, and many of them are repeating another dealer rather than reading a spec sheet. Use the manufacturer figure as the baseline and hold the replica to it.
What to look for
Case and proportions
- Diameter and thickness should track the genuine figures. A half millimetre of extra thickness changes how the watch sits and how it reads on the wrist.
- Lug width should match the reference, because that decides whether aftermarket straps fit without filing.
- Look at the lug profile in a side photo. Sharp, unfinished inner edges are common on budget cases.
- Brushed surfaces should run in one direction, with polished bevels that stay crisp instead of being rounded off by over-polishing.
- Crown action should feel firm with clean threads. A gritty crown points to a cheap tube and a short service life.
Dial, hands and crystal
- Printing should be level and sharp. On a pilot dial the numerals and the minute track are the first things a trained eye checks.
- Lume should sit flat with no overflow onto the dial surface, and the colour should match between the hands and the markers.
- Hands should be the right shape and length, reaching the track they point at.
- The crystal should be sapphire with an anti-reflective coating on the inside. Outer coating scratches and it is a cheap shortcut.
- Rehaut depth and dial shade vary between batches. Compare against photos of the genuine watch under the same light.
Date window and date wheel
The date is where most replicas fail. Check the font weight, the centring in the window, and whether the aperture is cut at the correct position and angle. A date that sits off centre or uses a generic font shows up in photos and it is impossible to ignore once you see it in person.
Movement
Ask which caliber is inside and get the answer in writing. A known Swiss or Japanese movement with a published specification is easier to service and easier to regulate. Unmarked blanks sold as "Swiss style" are a warning sign. If the seller can send a timegrapher photo, ask for rate, amplitude and beat error. Amplitude below 240 degrees on a freshly wound watch suggests wear or poor assembly.
Strap, bracelet and hardware
Check clasp engraving, spring bar quality, and whether the end links sit flush against the case. A visible gap at the lugs is one of the easiest tells, and it is hard to fix after the fact.
Parameter bands worth accepting
- Case diameter: within 0.3 mm of the genuine figure
- Case thickness: within 0.5 mm
- Lug width: exact match to the reference
- Crystal: sapphire, domed or flat as the reference dictates, with inner AR coating
- Movement: a named caliber with a published spec sheet
- Water resistance: gaskets fitted and pressure tested, 50 m minimum for daily wear
- Timekeeping: within plus or minus 20 seconds a day out of the box
- Lume: even application with matching colour across hands and markers
Pitfalls to avoid
- Buying from catalog renders. Ask for photos of the actual unit with a date card or timestamp.
- Trusting a "Swiss made" stamp. The label is regulated, and a stamp on a caseback proves nothing about the movement.
- Ignoring the date font. It is the single most common giveaway on a pilot watch.
- Paying a deposit to a seller with no stated return window. Get the terms in writing before payment.
- Choosing a larger case "for presence". It will not match the reference and it will wear badly.
- Skipping the arrival inspection. Test winding, the date change and water resistance inside the first week.
Inspection checklist on arrival
- Photograph the watch before you wear it, in case you need to open a dispute.
- Wind it fully and run it for 24 hours against a known good time source.
- Check that the date flips clean at midnight and centres in the window.
- Examine the dial under bright light at an angle for dust, smudges or uneven lume.
- Feel the crown, the bezel if fitted, and the clasp.
- Confirm any quick-release strap system works without forcing it.
- Keep the packaging and tags until you decide to keep the watch.
FAQ
Is the cheapest tier ever good enough?
In most cases, no. The savings come out of the case finishing and the movement, which are the two things you notice every day.
How do I confirm the movement is what the seller claims?
Ask for a photo of the movement through the caseback plus a timegrapher reading. A named caliber has known finishing and a known beat rate you can compare against.
Will a replica hold value?
No. Treat it as a consumable, not an investment.
How long should I wait before chasing shipping?
Two to four weeks is normal on most routes. Ask for a tracking number before you pay, and confirm what happens if the parcel is stopped at customs.
Bracelet version or strap version?
Buy the configuration that matches the reference you actually want. Adding a bracelet later is often harder and more expensive than ordering it once.