no source states which grade this article was bought at — this row exists so 'unknown' stays countable instead of becoming an assumption
movement
Rolex 3186
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.
No designation is recorded for this design yet.
No source in this corpus states which grade any Rolex 3186 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 |
|---|---|---|---|---|
GMT architecture cmpl.gmt_architecture | flyer | — | accepted | |
GMT hand disp.has_gmt_hand | yes | — | accepted | |
Hairspring material osc.hairspring_material | parachrom | — | accepted | |
Introduced prod.intro_year | 2007 | — | accepted | |
Caliber supply type prod.supply_type | in_house | — | 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.
Where this construction came from. Read up the arrows.
- Rolex 3185revision of
- Rolex 3085revision ofdepth 2
What came from it — revisions, variants, clones, licensed copies.
None recorded. An absence here means no source stated one, not that none exists.
Stored in a different table from descent. A successor is not a child.
- Rolex 3285successor of
Commercial replacement in the GMT-Master II line: ref. 126710BLRO (cal. 3285) succeeded ref. 116710LN (cal. 3186). The power-reserve comparison "70 hours from 50" is the source's own.
Used by
grain 5 reference — every record here sits at the same level, so the count is one kind of thing.
- Rolex SA5 modelsmodel:rolex/116710blnrmodel:rolex/116713lnmodel:rolex/116718lnmodel:rolex/116719blromodel:rolex/gmt-master-ii-116710ln
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
- 1Monochrome Watcheshttps://monochrome-watches.com/history-rolex-gmt-master-and-gmt-master-ii-1955-2024-iconic-traveller-watch-in-depth-review/presstier 2retrieved 2026-08-2412 facts on this page
- 2rolex.comhttps://www.rolex.com/en-us/watchmaking/features/movements/parachrom-hairspringarchivetier 1retrieved 2026-08-241 fact on this page
- 3rolex.comhttps://www.rolex.com/en-us/watches/gmt-master-ii/m126710blro-0002archivetier 1retrieved 2026-08-241 fact on this page