Short answer
A fake Constance fails at four points: the H clasp, the blind stamp, the strap clasp, and the stitch line. Hermès released the Constance in 1959. Catherine Chaillet designed it and named it after her fifth child. Hermès publishes no authentication specs. There is no official guide to copy. Buyers compare a suspect bag against a known-real one or pay a third-party authenticator.
What the real bag is
- One flap, one slip pocket on the back, one slip pocket inside.
- Sizes: Constance 14 (mini), 18, 23, and 24. A Constance 25 exists in small numbers.
- Hardware: gold plated, palladium, permabrass, or enamel on the H.
- Strap: two segments joined by a metal clasp. The clasp lets the strap be doubled to a shoulder length.
- Leathers: Epsom, Swift, Togo, Chèvre, and exotic skins.
The H clasp
The clasp is two halves. The top half carries the H. On real bags the H sits flush against the frame and the edges are polished. Enamel versions show even color with no bubbles at the rim. Fakes often show a soft H with rounded corners, tool marks, or a gap under the H. The clasp closes with one click. A fake may need force, or it closes loose and shifts.
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Blind stamp
Inside the back wall, behind the flap, real bags carry a blind stamp. It reads Hermès Paris, then Made in France. A craft code and a year letter sit near it. Stamps are pressed into the leather, not printed on it. Letters have sharp edges and even depth. Fakes use ink, uneven pressure, or a wrong font. Hermès changed stamp formats over the decades, so a mismatch is not proof on its own. Compare against a bag from the same year.
hermes constance fake comparison
Stitching and thread
Hermès uses a saddle stitch. Two needles pass through each hole from opposite sides. The result is a slanted stitch with a slight ridge along the seam. Stitch spacing stays even across the whole flap and the strap. Machine stitching looks flat and identical on both faces of the leather. Saddle stitching does not. Thread is waxed linen or cotton, and it holds a small twist.
Strap and small hardware
The strap clasp is a short metal bar with a spring gate. Real versions feel heavy for their size. Engravings are shallow, clean, and centered. The four feet on the base of the Constance 18 and 23 sit level; a fake often wobbles on a flat table.
Price signals
Hermès does not sell bags on its website. A Constance arrives through a boutique or through resale. Resale listings for a Constance 18 sit between about $11,000 and $20,000 depending on leather, hardware, and year. A "new" Constance at $1,500 does not match any step in that chain.
What photos cannot show
Weight, smell, and leather temper do not survive a photo. Ask for the blind stamp, the clasp at an angle, the strap clasp, and the interior pocket. A seller who refuses those four shots is a stop sign.