3817ST/X2/3ZU
- Production
- from 2016
- Model
- Type XXI Chronographe 3817
- Case material
- Stainless Steel
- Case size
- 42mm
- Movement
- Automatic
- Calibre
- Cal. 584Q/2
- Dial colours
- Grey
- Market value band
- $16k – $45k
3817ST/X2/3ZU is a Breguet Type XXI Chronographe 3817 reference, introduced in 2016.
The case is 42mm stainless steel.
It runs the Cal. 584Q/2, an automatic movement.
Catalogued dial colour: grey.
Within the Type XX references Watch Safe catalogues, it is the earliest by production start.
Introduced at Baselworld 2016 — the prior-generation Type XXI, essentially the platinum Only Watch 2015 unique piece (ref. 3813) re-cased in steel: slate-grey dial with cream/faux-patina Arabic numerals, fluted caseband, and (a first for the pilot line) a sapphire exhibition caseback. Central chronograph minutes/seconds, 12-hour counter, day/night indicator, flyback ('retour en vol'). Superseded by the 2023 Type 20/Type XX 2057/2067 generation, which one of the two sourced reviews describes as replacing 'all of the current pilot's chronographs, which are no longer in production' — exact discontinuation year not published, so productionEnd is left unset rather than guessed.
Before you ask.
When was the Breguet 3817ST/X2/3ZU produced?
The 3817ST/X2/3ZU was introduced in 2016.
What movement does the Breguet 3817ST/X2/3ZU use?
The Breguet 3817ST/X2/3ZU runs the Cal. 584Q/2, an automatic movement.
How do I check a Breguet 3817ST/X2/3ZU with Watch Safe?
Look up the watch's serial number in the Watch Safe registry to see whether a record exists or a theft flag is attached. A registry search identifies records for a specific serial; it does not authenticate the watch. Authentication is performed in person by an independent expert authenticator, and Watch Safe records and publishes the result.
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