The maison's flagship — a tote with a flap, a touret lock and a clochette of keys.
Introduced 1984Paris4 references
The Birkin's construction is its own argument. The handles are sewn to the body with hand saddle stitching that carries the full weight of the bag, and the stitch line at the handle base is where an authenticator looks first — it is under load, so a machine stitch there fails structurally as well as visually.
The touret is the metal bar the sangles turn onto; it should move with resistance and no lateral play, and the plate carrying HERMÈS PARIS should be flush against the leather with no gap. The clochette holds two keys in a lock that Hermès makes; the lock number is stamped on the lock and on the keys and the two must agree, since a mismatched set is a replaced part.
Size is measured in centimetres across the base — 25, 30, 35 and 40 are the standard run, with the 25 currently the most sought after and therefore the most counterfeited. The base has four to six studs depending on size, set square and screwed through.
Interior: a genuine Birkin's lining is goatskin, stitched not glued, with a zipped pocket and an open pocket whose edges are finished. The interior stamp sits where the era puts it, and the lining leather ages at a different rate from the exterior, which is normal.
Birkin 25 · Birkin 30 · Birkin 35 · Birkin 40
Establish which of these you are holding before judging it. A genuine piece read against another reference's rules will look wrong when it is not.
These apply to this model and not to the rest of Hermès. Work them alongside the maker's general checks, not instead of them.
Where the handles meet the body, the stitching bears the weight of the bag and is worked by hand in a slanting saddle stitch. A uniform machine stitch here is decisive: it is both the wrong technique and structurally the wrong choice, which is why counterfeits show wear at exactly this point.
The lock carries a number and so do its keys; on an original set they match. A mismatch means the hardware has been replaced, which is not counterfeiting but does change what the bag is worth.
The Birkin is the strongest resale performer in the category and routinely trades above its boutique price, because access to boutique purchase is rationed. Size, leather, hardware colour and — above all — condition set the figure, and an unworn bag with its box, clochette, keys, rain cover and dust bag sits well above the same bag missing them.
An orientation for honest, unrestored condition — never an appraisal, and never a quotation.
Lovenhall BagThe checks tell you how it was made. The instrument tells you what it appears to be, and roughly what its kind fetches.