SEIKO · SNK381K1
- Split
- Market suffix
K1 appears as a market suffix in listings; do not infer different dimensions without an exact source.
SEIKO
SNK381
Seiko 5
EXACT MODEL01 / SEIKO
EXTERNAL LISTINGS
Explore eBay listingsPaid LinkCheck the exact reference and condition with the seller before buying.
01 / REFERENCE FACTS
Specifications
- Case diameter
- 37 mm ↔ 38 mmCONFLICT TAU 9 v0.1 SNK381 conflict ledger
- Measured lug-to-lug
- 42 mm ↔ 44 mmCONFLICT TAU 9 v0.1 SNK381 conflict ledger
- Thickness
- —UNVERIFIED No retained source
- Movement
- —UNVERIFIED No retained source
03 / IDENTITY BOUNDARY
Sister references
04 / IDENTITY CONTROL
Mislistings
- Do not promote either 37/38 mm or 42/44 mm to canonical truth; retained sources disagree.
- No exact Seiko product page is retained for this reference, so dealer specifications remain non-canonical.
05 / PROVENANCE
Source ledger
- SourceClassExact refFields
- TAU 9 v0.1 SNK381 conflict ledgerresearch recordSNK381case_diameter, measured_lug_to_lug
06 / EXTERNAL MARKET
Market
Current listings are external inventory, not verified specification data. Availability and seller claims are not verified by TAU 9.