Answer
IW327010 is the IWC reference number for the Pilot's Watch Mark XVIII. The genuine watch has a 40 mm stainless steel case, a black dial, and caliber 35111 inside. Replica versions of IW327010 exist. They are counterfeits. US law bans their sale, and CBP can seize shipments.
Genuine Specs
IWC introduced the Mark XVIII in 2016. The line ended in 2022, when the Mark XX replaced it.
- Case: stainless steel, 40 mm wide, 11 mm thick
- Crystal: sapphire, anti-reflective coating on both sides
- Dial: black, white printed numerals, date at 3 o'clock
- Movement: caliber 35111, based on the Sellita SW300-1
- Frequency: 28,800 vph, 25 jewels
- Power reserve: 42 hours
- Water resistance: 6 bar, 60 m
- Strap: black Santoni calfskin, 20 mm lug width
- Magnetic protection: soft-iron inner case. IWC does not publish a gauss figure for this reference.
- US retail at launch: about $4,000 to $4,500 on leather
Replica Versions
Replica IW327010 watches come from several Chinese factories. The factories do not publish specs. Movements seen in these watches include clones of the ETA 2824-2, the Seagull ST2130, and the Miyota 9015. None of them is caliber 35111. Parts do not interchange with the genuine movement.
Points that differ on a replica: case thickness, crown thread feel, caseback engraving depth, dial print weight, and hand finish. Replica case thickness often reads 0.3 mm to 1 mm off the 11 mm figure. Sellers claim water resistance. There is no test data behind the claim. Do not swim with one.
What a Replica Does Not Reproduce
The soft-iron inner cage is often left out. IWC does not service counterfeits and does not sell parts for them. A local watchmaker can service a clone movement, but parts supply depends on the movement inside. Resale value for a counterfeit watch is near zero. No warranty applies. IWC will not authenticate one.
Legal Status in the US
IWC owns the Mark XVIII name and design. 18 U.S.C. 2320 makes trafficking in counterfeit goods a federal crime. Penalties include fines and prison time. CBP seizes counterfeit watches at ports and can seize personal imports. A buyer has no recourse if the item is seized.
Checks on a Watch You Already Own
- Measure case thickness. Genuine is 11 mm.
- Look at 9 o'clock. The Mark XVIII has no numeral there.
- Check the date font and the bevel on the window.
- Compare the Schaffhausen print under the logo.
- Ask a watchmaker to open the back and read the movement marking.
Bottom Line
IW327010 is a 40 mm steel pilot's watch with a Sellita-based movement and a 42 hour power reserve. Replicas copy the outside. They do not copy the movement, the magnetic cage, or the service network. The full cost of a replica is the price plus the loss of warranty, service, and resale.