How to date Yohji Yamamoto

The tells — 6, sourced

1. 01

   Era boundary first: the SIGNATURE mainline 'Yohji Yamamoto' (womenswear, from 1981) and 'Yohji Yamamoto POUR HOMME' (menswear, from 1984) are the archive — the 80s–90s the peak. Everything else is a different tier: 'Y's' (the original 1972 line, accessible, Japan-focused diffusion), 'Y-3' (the adidas sportswear collab, from 2002), 'S'YTE' (2011), 'Ground Y' (2016), 'Wildside' (2022). The single costliest mistake is paying mainline-archive money for a Y's, Y-3, or Ground Y piece — the price gap is enormous.

2. 02

   THE CARE-CODE CIPHER (the crown jewel, post-1991 — collector-decoded via Truss Archive + playful-dc, corroborate with construction, not a brand publication): the product code on the care tag reads [line letter][SEASON letter]-[number]-[number], e.g. 'HH-B69-006'. The FIRST letter is the line (H = POUR HOMME, F = Femme/womenswear, Y = Y's); the SECOND letter is the SEASON — the critical cipher, which repeats on a cycle (e.g. 'B' = SS95 / SS00 / AW06 / SS12; 'C' = SS99 / AW10 / AW19), so you triangulate the exact season against the garment's obvious era. This is the primary dating mechanism for anything after 1991.

3. 03

   The sizing shift is a hard era boundary: ALPHABETICAL sizing (S / M / L) was used through AW1999; NUMERICAL sizing (1 / 2 / 3 / 4) begins SS2000. A numeric-tagged piece is SS2000 or later; a letter-tagged piece is AW1999 or earlier — the fastest rough-date before you even read the code.

4. 04

   Country-of-origin tells: genuine mainline is 'MADE IN JAPAN'; Y-3 is primarily 'MADE IN VIETNAM'. A 'Made in Vietnam' piece wearing a mainline tag is a flag — the commonest fake is a Y-3 (often produced in Thailand) or a lower-tier garment with a mainline label stitched in. Weight construction and provenance; treat a single-tag read as necessary, not sufficient.

5. 05

   The Red Label caution: 'Y's for men [Red Label]' is a distinct sub-line (launched AW1993-94), NOT a mainline-archive grail signal — and it is separate again from 'Y's for men' and 'Y's Red Label'. Do not let a red label be sold as the runway mainline. (Collector-sourced, single-origin — corroborate before paying up.)

6. 06

   The undervalued lane: 1990s WOMENSWEAR trades chronically below the menswear at the same significance, and the 90s gabardine/wool tailoring 'photographs like a black box' online while hiding masterful cut — the honest value is in the construction, not the flat listing photo. What NOT to overpay for: Y's / Y-3 / Ground Y sold as mainline archive; a numeric-sized piece sold as '80s; a reissue sold as vintage.

Two sources or it ships as rumor. Where a tell is collector-lore rather than a museum fact, the tell says so — weight it with construction and provenance, never alone.

The full dossier