unknown
evidence: unknownmodified by Rolex SA3131
COSC Certified ChronometerRolex Superlative Chronometer
exec:rolex-3131/superlative
Family tree · none recorded
No lineage link to any other caliber is recorded for this design under the Heritage profile. That is a gap in the research, not a claim that none exists.
movement
Rolex 3131
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
Rolex 3131
movementproducer: Rolex SA
IIDesignations — 0 names
No designation is recorded for this design yet.
IIIExecutions — 2 articles
No source in this corpus states which grade any Rolex 3131 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.
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:rolex-3131/unknown
Specifications
| Property | Value | Scope | Status | Sources |
|---|---|---|---|---|
Jewels build.jewel_count | 31 | — | accepted | |
Date disp.has_date | no | — | accepted | |
Escape-wheel material esc.escape_wheel_material | nickel_phosphorus | — | accepted | |
Movement diameter geom.diameter_mm | 28.5 mm | — | accepted | |
Antimagnetic strategy mat.antimagnetic_strategy | both | — | accepted | |
Swiss movement origin.swiss_movement | yes | — | accepted | |
Frequency osc.frequency_vph | 28800 vph | — | accepted | |
Hairspring material osc.hairspring_material | parachrom | — | accepted | |
Power reserve (typical) power.reserve_typical_h | 48 h | — | accepted | |
Discontinued prod.discontinued_year | 2023 | — | accepted | |
Introduced prod.intro_year | 2007 | — | accepted | |
Caliber supply type prod.supply_type | in_house | — | accepted | |
Winding direction wind.direction | bidirectional | — | accepted | |
Hacking seconds wind.has_hacking_seconds | yes | — | 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 · 0
What came from it — revisions, variants, clones, licensed copies.
None recorded. An absence here means no source stated one, not that none exists.
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
3
models
1
brands
3
grade unknown
grain 3 reference — every record here sits at the same level, so the count is one kind of thing.
- Rolex SA3 modelsmodel:rolex/116400model:rolex/116400gvmodel:rolex/116900
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
- 1rolex.comhttps://www.rolex.com/en-us/watches/milgauss/m116400gv-0001.htmlarchivetier 1retrieved 2026-08-246 facts on this page
- 2Monochrome Watcheshttps://monochrome-watches.com/history-rolex-milgauss-collection-in-depth-review/presstier 2retrieved 2026-08-248 facts on this page
- 3Caliber Cornerhttps://calibercorner.com/rolex-caliber-3131curated dbtier 2retrieved 2026-09-085 facts on this pagecited, never crawled
- 4rolex.comhttps://www.rolex.com/en-us/watchmaking/features/movements/parachrom-hairspringarchivetier 1retrieved 2026-08-241 fact on this page
- 5rolex.comhttps://www.rolex.com/en-us/watches/air-king/m116900-0001.htmlarchivetier 1retrieved 2026-08-241 fact on this page