The short answer
IWC does not make a watch called the Big Pilot 100 Anniversary. No catalog reference carries that name. The phrase comes from sellers, not from Schaffhausen. It blends two real anniversaries: the 2016 pilot's watch collection, which marked 80 years since IWC's 1936 Special Pilot's Watch, and the 2018 Jubilee collection, which marked 150 years of the company. Buyers who search for a fake IWC Big Pilot 100 anniversary land on listings that use both numbers.
What the real Big Pilot is
The Big Pilot's Watch arrived in 2002 as reference IW5002. Specs: 46 mm steel case, antimagnetic inner case, cal. 5011 with Pellaton winding, seven-day power reserve, power reserve display at 3 o'clock, date at 6 o'clock, onion crown, 21,600 vph. Later references 5004, 5009 and 5010 kept the 46 mm size. The 2021 Big Pilot's Watch 43 cut the case to 43 mm and used cal. 82100 with a 60 hour reserve. Anniversary pilot models from 2018 used white lacquer dials with blue hands and blue calf straps.
What ships under this label
- 46 mm case, black dial, triangle marker at 12, sword hands.
- Date window at 6, power reserve scale at 3 with numerals 1 through 7.
- Alligator print strap in brown or black.
- Limited number engraved on the caseback, often 001/100 or 088/100.
Some listings swap the dial for white with blue hands and call it a 100 Years or 150 Years edition. Others sell a 43 mm case. A 46 mm dial on a 43 mm case is a mismatch that shows up in photos.
Checks that set the price tiers
Movement and power reserve
Real Big Pilot references run 168 hours on one wind. Replica movements run 40 hours or less. Wind the watch until the crown stops, set it against a clock, and leave it in a drawer. Check it two days later. If it stopped, the movement is a Miyota 8215, a 9015 or a Seagull ST25, not a cal. 5011. No replica on the market carries a seven-day IWC movement.
Case and glass
Measure the case with calipers. The real watch measures 46.0 mm across the bezel and about 15 mm thick. Many replicas land at 45 or 47 mm. The crystal should be domed sapphire with coating on both sides. Mineral glass scratches and looks flat at the edge.
Dial printing
Look at the word Schaffhausen under the IWC logo and the Automatic line. On a real dial the letters stay sharp under magnification. On low-tier replicas the print is thick and the spacing uneven. The power reserve numerals should be even and aligned with the ticks.
Caseback and engraving
Real casebacks carry the reference, the case number and International Watch Co. Replicas copy the text, but the engraving is shallow and limited edition numbers repeat across batches.
Price tiers
Under $100: quartz movement, mineral glass, stamped dial. $150 to $350: automatic clone, sapphire, correct 46 mm case. $400 and up: decorated rotor, sharper dial print, better strap. A real steel Big Pilot sells near $12,000 at retail.
What no replica matches
The Pellaton winding system, the antimagnetic inner case on classic references, and the 168 hour reserve. The 2018 white dial pilot editions were limited to low piece counts, and those dials use a lacquer finish that replicas print instead of paint.
Before you buy
- Ask for the case diameter in millimeters.
- Ask which movement, and who made it.
- Ask for a photo of the caseback and the crown.
- Ask the seller to name the IWC reference the watch copies.
A seller who cannot give the reference number is selling a generic pilot watch, not a copy of a specific Big Pilot.