Jacob & Co. AS312.21.AB.UA.A · Black Titanium Dragon
AS312.21.AB.UA.A Historical / catalogued
AS312.21.AB.UA.A · Black Titanium Dragon
Case
direct Dimensions and fit
Case length44 mm
Case width / diameter44 mm
Case thickness25 mm
Lug-to-lugNot recorded
Lug widthNot recorded
Water resistanceNot recorded
The dimension basis is not currently recorded.
Open dimension source ↗Movement
UnknownCalibre and mechanism
CalibreCalibre not publicly disclosed (public sources checked)
Normalized calibreCALIBRENOTPUBLICLYDISCLOSEDPUBLICSOURCESCHECKED
GenerationCatalogue reference; calibre unresolved
Power reserveNot recorded
Technical data
Calibre unresolved Conventional winding
ApplicabilityUnknown
DirectionNot recorded
TPD minimumNot recorded
TPD targetNot recorded
TPD maximumNot recorded
Conventional winding fields are evidence-linked reference data. They are separate from any device-specific axial-control profile.
Market context
Date not recordedMarket-value disposition
No exact-reference public market estimate has been admitted for this record.
Market observations are separate from manufacturer specifications and are not used to fill technical gaps.