Eterna 1414UD

Basic Information

NameEterna 1414UD
ManufacturerEterna
Launch Year1958
Caliber FamilyDescription
without/with date respectively:
1411/1421: 11.5" , domed dial
1412/1422: 12.5" , domed dial
1413/1423: 12.5" , flat dial
1414/1424: 13" , domed dial
1415/1425: 13" , flat dial
1416/1426: 13.5" , domed dial

Related calibers
Eterna 1411U, Eterna 1411U new, Eterna 1411UD, Eterna 1412U, Eterna 1412U new, Eterna 1412UD, Eterna 1413U, Eterna 1413U new, Eterna 1413UD, Eterna 1414U, Eterna 1414U new, Eterna 1414UD, Eterna 1415U, Eterna 1415U new, Eterna 1415UD, Eterna 1416U, Eterna 1416U new, Eterna 1416UD, Eterna 1421U, Eterna 1421U new, Eterna 1421UD, Eterna 1422U, Eterna 1422U new, Eterna 1422UD, Eterna 1423U, Eterna 1423U new, Eterna 1423UD, Eterna 1424U, Eterna 1424U new, Eterna 1424UD, Eterna 1425U, Eterna 1425U new, Eterna 1425UD, Eterna 1426U, Eterna 1426U new, Eterna 1426UD
Is COSC certifiedNo

Technical Details

Lignes Dimensions13 ‴
Dimensions29.4 mm
Height5.55 mm
Further MeasuresMounting Diameter (Dm): 29.0mm
Ball Bearing: 0.05mm
Stem height (T): 2.1mm
Mounting Height (F): 1.6mm
Power Reserve48 hours
Frequency18,000 vph
Jewels21

Complications and Specifications

ShapeRound
Complications
  • Sweep Second
Regulator TypePinned Regulator (or Index Regulator)
Movement TypeAutomatic
Rotor TypeCentral Rotor
Escapement TypeSwiss Lever
Control TypeBalance Wheel
Winding TypeAutomatic (Rotor-Driven)
Setting TypeStem Set (Crown Pull)

Additional Information

Hand Sizes1.50 x 0.90 x 0.21mm
Hand Count3
Country Of Manufacture(not set)
NotesRemarks: 1958-
option: micrometer regulator
Other data: balance staff: U2266 stem: W2411 mainspring / battery: 1.55 x 11.0 x 0.11mm generations: old: identified by pawl wheels, late samples with details of new base plate new: base plate modified, new pawl wheels, late samples with 2-spoke ring balance suffix UD: 3-spoke ring balance, new hairspring stud and hour-wheel spring, early samples still with balance, stud and/or spring from predecessor, and partially without number
Ranfft mentioned about this caliber: There are variants with this quantity of jewels 17, 21
Signature1-3) 1958: 4698987, Eterna-Matic, Brevete; Eterna-U (hairspring stud from predecessor) 4-5) 1958: Eterna-Matic, Brevete; Eterna-U (2-spoke ring balance from predecessor)
Import Codes

Metadata

Created AtSep 15, 2023
Updated AtApr 23, 2025, 11:32:18 PM
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