Authentication
How to authenticate a Chanel Classic Flap
By the Encore Luxe specialists · Reviewed by Encore Luxe Authentication · Updated October 2026
The Classic Flap, reference 11.12 (A01112) in its medium size, is one of the most copied bags in the world. That is why we never rely on a single detail. Copies are often good on one point and wrong on three others, so a genuine Classic Flap is recognised by everything agreeing at once: leather, quilting, stitching, hardware, interior and serial. Below is how our specialists work through a bag. Use it to ask better questions wherever you buy.
This guide is for understanding, not a substitute for professional authentication. If in doubt, ask a specialist to see the bag in person.
1. Start with the silhouette and the leather
A genuine Classic Flap stands upright with a firm, even shape, and the front and back flaps meet the base squarely. Caviar leather has a raised, pebbled grain that is regular without being machine-perfect, with a slight sheen. Lambskin is buttery and soft and should wrinkle naturally where it is handled, never looking plasticky or glazed. The leather should smell of leather, not of glue or chemicals.
2. The quilting should line up
Chanel's diamond quilting is cut and aligned with care:
- On the back pocket and the front flap, the diamonds line up horizontally with those on the body.
- The quilting is symmetrical either side of the CC turn-lock.
- Diamonds are crisp and evenly puffed; on the medium flap, copies often have too few, oversized diamonds.
3. Count the stitches
Genuine Classic Flaps have a high stitch count per diamond side (typically ten or more on a medium bag), with small, tight, even stitches. Low counts, uneven spacing, loose thread or stitching that wanders off the quilt line are among the most reliable warning signs.
4. The CC turn-lock
- The right "C" overlaps at the top and the left "C" at the bottom.
- The Cs are of even width, with flat, smooth faces and no casting marks.
- Since the mid-2000s the back plate has been held by flat-head screws, not Phillips screws.
- The lock turns smoothly with a soft, positive click.
- The front-lock plate should be stamped "CHANEL" and "PARIS" with crisp, even letters.
5. Chain and leather strap
The chain is interlaced with leather through flat links. It should be heavy for its size, evenly finished and free of gaps where the plating meets the link. The leather threading lies flat and neat, without puckers. The shoulder pad, where present, is stitched neatly.
6. Interior, stamps and lining
- The "CHANEL" interior stamp under the flap, with "® ... Made in France" (or Italy), is crisp with even spacing. The "O" is round; the "C" of Chanel is even.
- The lining is leather, slightly textured, and colour-matched. It should not be sloppily glued.
- The "mademoiselle" lipstick pocket and the "M" or zip pocket on the inside are neatly finished.
7. Serial stickers, cards and microchips
- Up to 2021: a hologram serial sticker inside, with digits that should match the authenticity card if present. The digit count indicates roughly the era (six digits for the 1980s–early 1990s, seven for later 1990s–2000s, eight for 2005 onwards). Holograms have a cross-hatched X or "CHANEL" pattern that shifts in the light, and older stickers have two diagonal cuts.
- From 2021: Chanel replaced serial stickers with an embedded microchip and a metal plate with a serial, and stopped issuing authenticity cards.
- A card or sticker on its own proves nothing. They are among the most copied items, and a genuine bag can lose them. Everything else must agree with them.
8. Packaging is not proof
Boxes, dust bags, ribbons and receipts are easily copied and are often separated from bags over years of use. We record what is included with every piece, but we authenticate the bag itself.
What we do at Encore Luxe
Every Chanel piece that comes to us is inspected in our UK studio against the checks above and many more. We look at the leather and hardware under magnification, compare construction details with reference pieces from the same era, and verify that the serial, sticker or chip is consistent with the bag. Anything we are not certain about, we do not offer. Each listing then describes condition precisely, using our condition grading.
Read next: The Chanel Classic Flap: sizes, leathers and history · How we authenticate · Caring for caviar and lambskin
Questions we’re often asked
- How can I tell if a Chanel Classic Flap is real?
Check that the quilting aligns across the back pocket and flap, that the stitching is dense and even, and that the CC lock has the right C over the top. Then check that the serial or chip matches the era of the bag. No single detail is conclusive; all of them should agree.
- Do all genuine Chanel bags have a serial number?
Almost all bags made since the mid-1980s have a hologram serial sticker, and bags made from 2021 have a microchip instead. Very early vintage pieces may have none, and stickers can be lost or damaged, so their absence calls for expert inspection rather than an automatic verdict.
- Is an authenticity card proof that a Chanel bag is genuine?
No. Cards are widely counterfeited and can be paired with the wrong bag. Chanel also stopped issuing them in 2021. A card is only meaningful if its number matches a sticker that is genuine and consistent with the bag.
- Which way should the CC lock overlap?
On a genuine Classic Flap, the right C crosses over the left at the top, and the left C crosses over the right at the bottom. The Cs should be the same width and have a smooth, even finish.
- Should a Chanel Classic Flap have screws on the back of the lock?
Bags from roughly the mid-2000s onwards use flat-head screws on the turn-lock back plate. Phillips-head screws on a modern-era bag are a warning sign.
Encore Luxe is an independent retailer of pre-loved luxury and is not affiliated with Chanel. This guide is provided for general information.