Answer first

A fake IW376021 is a copy of an IWC Da Vinci Automatic. Originals carry an IWC caliber, a caseback with a matching reference and serial number, and dial print that holds up under a loupe. Copies fail on four points: the movement, the caseback engraving, the date font, and the paperwork. No copy is identical to the original.

One caution. IWC has used the 3760xx block for more than one Da Vinci Automatic variant, and case size, caliber and dial layout change across that block. Confirm the exact specification for IW376021 in the IWC reference data before you compare a watch to photos. If a seller cannot name the caliber, stop there.

What the reference is

The Da Vinci is one of IWC's long-running lines, made in Schaffhausen, Switzerland. The IW376021 sits in the Automatic branch of that line. Original examples ship with a signed caseback, a numbered warranty card, and a presentation box with IWC documentation.

Checks that separate a copy from an original

  1. Movement. Ask for a clear photo through the caseback or with the back removed. IWC rotors are engraved with the brand mark and the caliber number. Copies show generic rotors, rough finishing, or no engraving at all.
  2. Caseback. The reference number and serial number are engraved, not laser-printed. Edges are crisp. Copy engraving looks shallow and rounded, and the reference often does not match the dial.
  3. Dial print. Under 10x magnification the letters "IWC" and "SCHAFFHAUSEN" sit sharp and level. Copy print shows bleed, uneven spacing, or a heavy serif.
  4. Date font. Original date wheels use a narrow, flat numeral. Copies use fat numerals with a visible outline.
  5. Hands and markers. Applied markers sit flush and even. Copy markers sit at slight angles and catch light at different heights.
  6. Crown. The crown engraving is deep and centered. Copy crowns are stamped light and sit off-center.
  7. Weight and sound. An automatic caliber has a rotor that moves with a soft sweep. A cheap quartz copy is silent and light.
  8. Papers. Warranty card, booklet, and box should carry matching numbers. Loose watches with no documents are the common source of copies.

Price reality

Da Vinci Automatics trade on the secondary market at a range of prices that depends on condition, year, and box and papers. A price far under the market band for the same reference, in the same condition, is a warning. Ask for the service history and a timestamped photo set.

Legal note for US buyers

Trafficking in counterfeit goods is a federal offense under 18 U.S.C. § 2320. Selling a copy as an original is fraud. Sites that label goods as first copy or replica are describing copies, not IWC products.

Questions to send a seller

  • What caliber is in the watch, and can you send a movement photo?
  • What is the caseback reference and serial number?
  • Do the card, box, and booklet numbers match the case?
  • Is the watch running within spec, and when was it last serviced?