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:omega-8500/unknown
accepteddisputed
movement
Omega 8500
bounding evidence — no range is drawn on the era axis
not after 2013
Omega 8508 · introduced 2013 (sourced)
not before 1999
Omega 2500 · introduced 1999 (sourced)
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
Omega 8500
movementproducer: Omega
IIDesignations — 0 names
No designation is recorded for this design yet.
IIIExecutions — 1 article
No source in this corpus states which grade any Omega 8500 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 |
|---|---|---|---|---|
Jewels build.jewel_count | 39 | — | accepted | |
Escapement family esc.family | co_axial | — | accepted | |
Movement diameter geom.diameter_mm | 29 mm | — | accepted | |
Swiss movement origin.swiss_movement | yes | — | accepted | |
Frequency osc.frequency_vph | 25200 vph | — | accepted | |
Hairspring material osc.hairspring_material | silicon | — | accepted | |
Barrel configuration power.barrel_configuration | serial | — | accepted | |
Barrels power.barrel_count | 2 | — | accepted | |
Power reserve (typical) power.reserve_typical_h | 60 h | — | accepted | |
Introduced prod.intro_year | 2007 | — | accepted | |
Winding direction wind.direction | bidirectional | — | accepted | |
Winding mode wind.mode | automatic | — | 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 · 2
What came from it — revisions, variants, clones, licensed copies.
- Omega 8508derived from
- Omega 8900derived from
Related · 2
Stored in a different table from descent. A successor is not a child.
- ETA 2892-A2no derivation between
- Omega 2500successor of
succeeds the 2500 in the lineup; the source explicitly denies derivation
Sources
- 1Monochrome Watcheshttps://monochrome-watches.com/omega-co-axial-escapement-technical-perspective/presstier 2retrieved 2026-08-2413 facts on this page
- 2swatchgroup.comhttps://www.swatchgroup.com/en/services/archive/2010/omegas-co-axial-storypresstier 3retrieved 2026-08-244 facts on this page
- 3Caliber Cornerhttps://calibercorner.com/omega-caliber-8500curated dbtier 2retrieved 2026-09-082 facts on this pagecited, never crawled
- 4teddybaldassarre.comhttps://teddybaldassarre.com/blogs/watches/co-axial-movementpresstier 3retrieved 2026-08-241 fact on this page
- 5omegawatches.comhttps://www.omegawatches.com/en-us/chronicle/2013-solving-a-modern-problemmanufacturertier 1retrieved 2026-08-241 fact on this page
- 6Watch-Wikihttps://www.watch-wiki.net/index.php?title=Omega_2500wikitier 3retrieved 2026-08-241 fact on this pagecited, never crawled