The Trained Nose

Caleche against Caleche Soie de Parfum

One number per era rather than one number overall — two fragrances can be near-identical at the opening and different things by the evening, and an average hides exactly that.
Hermès

Caleche

· lasts about 7.6 h

How close, and when

Across a whole wearing, Hermès Caleche and Hermès Caleche Soie de Parfum are all but the same thing. They are nearest during the opening and furthest apart in the drydown, which is the part a single figure would average away.

97% opening · 0–1 h
94% heart · 1–3 h
90% drydown · 3–8 h
Measured across all twenty-four facets, from the notes below — not from the families on the boxes. They share 10 of 24 materials, which is worth holding beside the figures: a pair can share almost nothing and still converge, because different materials can smell of the same things.

What AKIN predicts

AKIN predicts these two are alike, and the evidence behind that is substantial.

Two signals sit on this page and are never averaged: what the note pyramids measure these two to share, and what AKIN’s resemblance graph predicts. Where they part, that is the finding rather than a fault.

The pyramids, side by side

Compared by material rather than by spelling, so a note recorded two ways is not counted as a difference.
top
both — Aldehyde, Bergamot, Neroli
Caleche only — Cypress, Lemon, Mandarin Orange, Orange Blossom
Caleche Soie de Parfum only — Citron
heart
both — Iris, Jasmine, Lily of the Valley
Caleche only — Gardenia, Rose, Ylang-Ylang
Caleche Soie de Parfum only — Damask Rose, May Rose, Orange Blossom
base
both — Cedar, Oakmoss, Sandalwood, Vetiver
Caleche only — Amber, Musk, Tonka Bean

Other comparisons worth reading

Pairs involving one of these two where the notes are fully recorded on both sides and AKIN has enough evidence for the pair to be worth reading.