A fake Vacheron Constantin Traditionnelle Chronograph is a watch that copies the round case, dial layout and pushers of a genuine reference without being made or sold by Vacheron Constantin. The company was founded in Geneva in 1755. Traditionnelle chronographs use an in-house column-wheel movement, a gold or platinum case, and retail for five figures. Listings at US$200 to US$1,200 are copies.
What the genuine watch is
Traditionnelle is the classic round-case line. Cases run 38 mm to 42 mm by reference. Chronograph versions run at 21,600 vibrations per hour, with a column wheel and a horizontal clutch. Dials carry applied gold markers, a small seconds subdial at 9 o'clock and a 30-minute counter at 3 o'clock. Perpetual calendar versions add day, date, month and moon phase displays.
Check 1: movement finish
Calibre 1142 descends from the Lemania 2310 ebauche. Vacheron Constantin finishes it to the Hallmark of Geneva: chamfered bridges, Geneva stripes, circular graining, polished screw heads, and jewels set in gold chatons. Copies use Chinese or Japanese chronograph movements with stamped bridges and plated surfaces. Ask for a clear photo of the movement. A stamped balance cock and an undecorated mainplate rule the watch out.
Check 2: case metal and weight
Genuine cases come in 18k white, rose or yellow gold, or 950 platinum. A platinum watch weighs more than a steel copy of the same diameter. Look inside the caseback for a Swiss precious metal hallmark. Copies use steel or brass with gold plating. Plating wears through at the lugs and crown within months.
Check 3: dial printing and hands
The word "Geneve" on a genuine dial carries a grave accent. Some copies drop it. Lettering is sharp under a loupe, with no bleeding at the edges. Genuine hands are gold or blued steel with beveled edges. Copies use painted hands with flat edges and rough tips.
Check 4: pushers and reset
A column-wheel chronograph starts and stops with a light, distinct click. The reset snaps the seconds hand to zero in one motion. Copies driven by a cam module feel spongy, and the hand lands two or three seconds off zero.
Check 5: numbers and papers
Vacheron Constantin engraves a case number and a movement number. Both appear on the original certificate and in the company's production records in Geneva. A boutique can confirm a match. Copies carry numbers with no record behind them, plus certificates printed on office paper.
Check 6: price
Retail for a gold Traditionnelle chronograph sits near US$50,000. The platinum perpetual calendar chronograph lists above US$100,000. Used gold references trade in the tens of thousands. Price alone identifies most copies.
What photos cannot show
A photograph cannot show movement finish under a loupe, weight in the hand, or the feel of the chronograph. Buy only with an inspection period and a return right. Counterfeit watches carry no manufacturer warranty and no parts support. Vacheron Constantin will not service a copy.