Sonceboz ES 56

Basic Information

NameSonceboz ES 56
ManufacturerSonceboz
Launch Year1980
Caliber FamilyDescription
ES 54: pin lever

minor layout modification:
ES 55: pin lever
ES 56: pin lever, date
ES 95: Swiss lever
ES 96: Swiss lever, date

Related calibers
Sonceboz ES 54, Sonceboz ES 55, Sonceboz ES 56, Sonceboz ES 95, Sonceboz ES 96
Is COSC certifiedNo

Technical Details

Lignes Dimensions12 ‴
Dimensions27 mm
Height4.9 mm
Further MeasuresMounting Diameter (Dm): 26.6mm
Stem height (T): 2.6mm
Mounting Height (F): 1.35mm
Power Reserve32 hours
Frequency21,600 vph
Jewels17

Complications and Specifications

ShapeRound
Complications
  • Sweep Second
  • Date
Regulator TypePinned Regulator (or Index Regulator)
Movement TypeManual
Escapement TypePin Lever
Control TypeBalance Wheel
Winding TypeStem Winding (Crown)
Setting TypeStem Set (Crown Pull)

Additional Information

Hand Sizes1.50 x 0.90 x 0.20mm
Hand Count3
Country Of ManufactureSwitzerland
NotesRemarks: pin lever
indirect minute, hand friction clutch on barrel
stem mechanism without setting-lever spring
variants with/without separate barrel bridge (cf. ES 55)
Ranfft mentioned about this caliber: There are variants with this quantity of jewels 1, 17
Signatureca. 1980: Swiss Watch Co Ltd Seoul Korea, Swiss Parts Assembled in Korea, Unadjusted, 1 Jewel

Metadata

Created AtSep 15, 2023
Updated AtApr 23, 2025, 11:34:05 PM
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