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:zenith-el-primero-3600/unknown
accepteddisputed
movement
Zenith El Primero 3600
bounding evidence — no range is drawn on the era axis
not before 1969
Zenith 3019 PHC (El Primero) · introduced 1969 (sourced)
not before 1987
Zenith El Primero 400 · introduced 1987 (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
Zenith El Primero 3600
movementproducer: Zenith
IIDesignations — 0 names
No designation is recorded for this design yet.
IIIExecutions — 1 article
No source in this corpus states which grade any Zenith El Primero 3600 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 |
|---|---|---|---|---|
Total components build.component_count | 311 | — | accepted | |
Chronograph actuation cmpl.chrono_actuation | column_wheel | — | accepted | |
Chronograph clutch cmpl.chrono_clutch | horizontal_lateral | — | accepted | |
Chronograph construction cmpl.chrono_construction | integrated | — | accepted | |
Chronograph cmpl.has_chronograph | yes | — | accepted | |
Frequency osc.frequency_vph | 36000 vph | — | accepted | |
Power reserve (typical) power.reserve_typical_h | 60 h | — | accepted | |
Introduced prod.intro_year | 2019 | — | accepted | |
Hacking seconds wind.has_hacking_seconds | yes | — | accepted | |
Winding mode wind.mode | automatic | — | accepted | |
Rotor bearing wind.rotor_bearing | ball_bearing | — | 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 · 2
Where this construction came from. Read up the arrows.
- Zenith El Primero 400derived from
- Zenith 3019 PHC (El Primero)derived fromrevision ofdepth 2
Descendants · 1
What came from it — revisions, variants, clones, licensed copies.
- Zenith El Primero 3620derived from
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.
Curated family labels
El Primero (Zenith)
authority: zenith7 members
Used by
45
models
1
brands
45
grade unknown
grain 1 model · 44 reference — the count above mixes levels. A family record is one the source states a movement for family-wide; a reference record is one case reference. They are not the same unit and are never summed silently.
- Zenith45 modelsmodel:zenith/03-3100-3600-21-c822model:zenith/03-3100-3600-21-m3100model:zenith/03-3100-3600-21-r951model:zenith/03-3100-3600-69-c823model:zenith/03-3100-3600-69-m3100model:zenith/03-3100-3600-69-r951model:zenith/03-3103-3600-69-m3100model:zenith/03-3103-3600-69-r950model:zenith/03-3109-3600-18-m3100model:zenith/03-3114-3600-51-m3100model:zenith/03-3114-3600-51-r950model:zenith/03-3119-3600-56-m3100model:zenith/03-3119-3600-56-r952model:zenith/03-3200-3600-21-c903model:zenith/03-3200-3600-21-m3200model:zenith/03-3200-3600-22-c908model:zenith/03-3200-3600-22-m3200model:zenith/03-3200-3600-34-c869model:zenith/03-3200-3600-51-c902model:zenith/03-3200-3600-51-m3200model:zenith/03-3200-3600-52-c910model:zenith/03-3200-3600-69-c902model:zenith/03-3200-3600-69-m3200model:zenith/03-3201-3600-18-m3200model:zenith/03-9500-3600-01-i001model:zenith/03-9500-3600-02-i001model:zenith/03-9500-3600-21-i001model:zenith/03-9500-3600-51-i001model:zenith/16-3200-3600-02-c907model:zenith/16-3200-3600-03-c906model:zenith/18-3100-3600-69-c920model:zenith/18-3100-3600-69-r951model:zenith/18-3101-3600-21-m3100model:zenith/18-3101-3600-21-r951model:zenith/18-3101-3600-69-m3100model:zenith/18-3101-3600-69-r953model:zenith/18-3200-3600-69-c901model:zenith/22-3100-3600-69-m3100model:zenith/51-3100-3600-69-m3100model:zenith/51-3100-3600-69-r950model:zenith/95-3001-3600-69-c817model:zenith/95-3002-3600-69-c818model:zenith/95-3100-3600-39-m3100model:zenith/95-3100-3600-39-r951model:zenith/chronomaster-2-special-50th-anniversary-edition
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
- 1zenith-watches.comhttps://www.zenith-watches.com/en_us/product/chronomaster-sport-03-3100-3600-69-m3100manufacturertier 1retrieved 2026-08-246 facts on this page
- 2Monochrome Watcheshttps://monochrome-watches.com/in-depth-the-history-of-the-zenith-el-primero-high-frequency-automatic-chronograph/presstier 2retrieved 2026-08-2410 facts on this page
- 3Monochrome Watcheshttps://monochrome-watches.com/zenith-chronomaster-2-the-next-big-step-forward-for-the-el-primero/presstier 2retrieved 2026-08-245 facts on this page
- 4zenith-watches.comhttps://www.zenith-watches.com/en_us/product/defy-extreme-97-9100-9004-80-i209manufacturertier 1retrieved 2026-08-241 fact on this page
- 5Monochrome Watcheshttps://monochrome-watches.com/history-rolex-daytona-chronograph-1963-in-depth-review/presstier 2retrieved 2026-08-241 fact on this page