Some specifications for this reference are on file; the record is incomplete.
Seiko · Prospex
62MAS
Ref. 6217-8000 — “62MAS”
Provenance of this record
Sources & Evidence
No sources have been cited for this reference yet. Its specifications should be treated as unverified until they are.
Last verified: Not yet reviewed
Claim-level evidence
Researched claims
Each fact below is one source's statement, reviewed by Atlas & Crown before publication. Manufacturer specifications, independent research and observed examples are labelled separately, and disagreements are shown rather than settled.
The badge on each field is the confidence of the field as a whole, derived from how many independent sources agree; the badge on each statement is what that one source can support on its own.
No reviewed research claims are on file for this reference yet.
Confidence describes the strength of the evidence behind a statement about the reference. It is not a judgement about any individual watch.
Open questions on this reference
62MAS 6217-8000 production window
Over exactly which months of 1965 was the small-crown 6217-8000 produced?
Best current answer
Roughly two to three months in the first half of 1965. The catalog records the production year as 1965 at both ends rather than asserting specific months.
Conflicting claims
Collector guides give April to June 1965 and, separately, April to May 1965. The distinction matters more here than on most references, because the window is short enough that the caseback month code becomes a real cross-check — and a wrong month boundary would turn a correct watch into an anomaly.
Scope Would sharpen the serial-dating check that this reference's short production window makes unusually informative.