unknownsynthetic
evidence: unknown
no source states which grade this article was bought at — this row exists so 'unknown' stays countable instead of becoming an assumption
exec:grand-seiko-9f62/unknown
accepteddisputed
movement
Grand Seiko 9F62
Identity
A caliber is three separate things and this reference keeps them apart: the construction, the names it is sold under, and the article a brand actually bought. A watch model points at an execution — never at a bare construction — which is why “same caliber” is almost never a complete answer.
IDesign — the construction
Grand Seiko 9F62
movementproducer: Grand Seikoassembler: Seiko Epson Corporation
IIDesignations — 0 names
No designation is recorded for this design yet.
IIIExecutions — 1 article
No source in this corpus states which grade any Grand Seiko 9F62 was bought at. That unknown is stored as a real row rather than left blank, so it can be counted, filtered and excluded from any comparison that would otherwise assume parity.
Specifications
| Property | Value | Scope | Status | Sources |
|---|---|---|---|---|
Date switching disp.date_switching_class | instantaneous | — | accepted | |
Date disp.has_date | yes | — | accepted | |
Escapement family esc.family | none | — | accepted | |
Oscillator architecture osc.architecture | quartz_crystal | — | accepted | |
Product family prod.family_name | 9F | — | accepted | |
Caliber supply type prod.supply_type | in_house | — | accepted | |
Stepper motor rate qz.motor_step_rate_hz | 2 Hz | — | accepted | |
Quartz oscillator frequency qz.oscillator_frequency_hz | 32768 Hz | — | accepted | |
Power source qz.power_source | primary_cell | — | accepted | |
Regulator class qz.regulator_class | quartz_stepper | — | accepted | |
Movement technology qz.technology | quartz_battery | — | accepted | |
Thermocompensation brand qz.thermocomp_brand | Ultra Precision Quartz | — | accepted | |
Thermocompensated qz.thermocompensated | yes | — | accepted | |
Hacking seconds wind.has_hacking_seconds | yes | — | accepted |
Lineage
The same relationships as the tree at the top of this page, with their sources. An absence in a column means no source stated one.
Ancestors · 0
Where this construction came from. Read up the arrows.
None recorded. An absence here means no source stated one, not that none exists.
Descendants · 1
What came from it — revisions, variants, clones, licensed copies.
- Grand Seiko 9F61variant of
Related · 0
Stored in a different table from descent. A successor is not a child.
None recorded. An absence here means no source stated one, not that none exists.
Used by
11
models
1
brands
11
grade unknown
grain 11 reference — every record here sits at the same level, so the count is one kind of thing.
- Grand Seiko11 modelsmodel:grand-seiko/sbgx218model:grand-seiko/sbgx219model:grand-seiko/sbgx259model:grand-seiko/sbgx261model:grand-seiko/sbgx263model:grand-seiko/sbgx265model:grand-seiko/sbgx267model:grand-seiko/sbgx295model:grand-seiko/sbgx297model:grand-seiko/sbgx355model:grand-seiko/sbgx357
Every brand here is on the strength of a source that names a watch and states this movement. Brands that use this caliber and nobody has sourced yet are absent — this is what has been researched, not what exists.
Sources
- 1grand-seiko.comhttps://www.grand-seiko.com/us-en/collections/movement/quartzmanufacturertier 1retrieved 2026-08-2412 facts on this page
- 2Monochrome Watcheshttps://monochrome-watches.com/a-week-in-japan-with-grand-seiko-reveals-secrets-of-the-brands-unique-craftsmanship/presstier 2retrieved 2026-08-241 fact on this page
- 3grand-seiko.comhttps://www.grand-seiko.com/us-en/collections/movement/quartz/9f62manufacturertier 1retrieved 2026-08-244 facts on this page
- 4grand-seiko.comhttp://www.grand-seiko.com/about/movement/quartz/manufacturertier 1retrieved 2026-08-241 fact on this page
- 5Caliber Cornerhttps://calibercorner.com/grand-seiko-caliber-9f62/curated dbtier 2retrieved 2026-08-241 fact on this pagecited, never crawled