GrailAtlasIndependent watch reliability, quality & value
Grand Seiko

Shunbun SBGA413

Ref. SBGA413
2021–present · 41mm · caliber 9R65 · 9 comparable sales on file
Originality not assessed

Recent comparable sales

$4K$4K$4K$4K$5K08/202510/202501/202604/2026Sold price (USD)
excellent / very-good good fair / for-parts full-set comp fair-value band
Market value (excellent · full set)
$4,420
typical range $4,240–$4,559 · 9 comparable sales · MEDIUM CONFIDENCE
Not enough recent sales to read momentum
In-house manufacture caliber · caliber 9R65

Grail Atlas ratings

Reliability
STRONG
low confidence
provisional
Quality
STRONG
low confidence
provisional
Value
FAIR
low confidence
provisional
Ratings are computed from 3 community / OSINT signals, weighted by source credibility and validation state — never from unvalidated OSINT alone. A rating is "provisional" until enough owner reports back it.

Signals — 3

expert reviewedShares the proven 9R65 Spring Drive caliber.
reliability · expert-review · positive
osint unvalidatedThe cherry-blossom dial is a standout seasonal piece.
general · youtube · positive
osint unvalidatedSeasonal-dial models can be volatile on resale.
value · forum · negative

Listings for this reference

Grand Seiko
Shunbun SBGA413
Ref. SBGA413 · Chrono24 · ships from JP
Originality not assessed
LISTED
Landed cost (to US)
$4,545
asking 540,000 JPY · +ship/duty/tax $927
Value vs market
OVERPRICED
about 11% above the typical price
MEDIUM CONFIDENCE
typical range $3,943–$4,240 · 9 comps
Trust · SAFE
Platformstrong
Listingstrong
Sellerstrong
inspection photos 50%
Listed 50 days ago

Related references

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Grand Seiko Shunbun SBGA413 SBGA413 — Grail Atlas